As far as the digression on LP, it is interesting to me that so much time has been spent on that subject; also interesting that something that limits a player's ability to make offensive shots would be presented as a devastating weapon, and the idea that the LP player does not need to know how to read spin to return the ball and get it on the table. I have seen players who know how to play vs LP make the LP player put the ball into the net, pop the ball up, and also force the LP player to give an easy ball to crush and end the point.
If a player can't handle short game....this is not an issue with pips, it points out a weakness in the person's game skills....short game is often overlooked by lower level players but it is of great importance to your overall level. If you can't handle short game, it would be hard to get higher than a certain level of play that is, actually, a fairly low standard.
There are many ways to respond in short game. Someone who is stuck with only one option is also demonstrating limitations in skills. If you can't read the spin on a short ball, regardless of what kind of playing surface the ball came off (LP, SP, Anti or Smooth) then, that also shows an area that the player needs to work on. As has been pointed out, someone using smooth rubber can also serve up weird balls....things that look like a push but are dead or have topspin are totally possible from smooth rubbers. (I use dead and topspin "pushes" often when playing people who don't read the ball well in short game).
What we are talking about are fundamental skills of the game. There is nothing wrong with not being great at the short game. But to know that is a weakness in your skill set and to do nothing about it and blame the equipment of others seems a bit unfortunate to me.
Probably, the people complaining about the "fairness" of LP should do as much practice against LP as possible; perhaps even practice with as well to better understand ways in which LP can be used to kill spin, to increase spin, or to just give back what was already on the ball (which often gets called spin reversal but is really spin-continuance: if topspin is coming at your opponent and the ball gets sent back to you without any altering of the spin, when the topspin ball is going the other way, it is backspin: the spin is the same; the direction of the flight of the ball is what has been reversed but the spin....it has not been altered).
When you get used to what can come back and learn how to read the spin from the trajectory and bounce of the ball (instead of being fooled by what the racket does) LP stops being the issue some are making it out to be. That being said, as you get better, and you play higher level LP players, they will give you problems to solve that are more challenging than lower level LP players. To me, this seems obvious. They are higher level for a reason. And part of being higher level is being used to higher quality shots with higher levels of spin on them.
It might be true that, some 1300 level players, if they just put LP on one side, will end up being able to play better vs some 1500 level players; but they also may play worse against some 1100 level players if all they have done is put LP on their racket and not done anything or learned anything. But to believe that just by putting LP on and not doing anything or learning anything, you will automatically be a better player (or be able to beat higher level players) seems to ignore that the LP players who are actually also good, high level players, have done something to learn how to use that equipment. And not everyone would be able to, or even want to play the way you would need to play if you were using LP.
So, I would say, if you are playing smooth, and you are complaining that LP are not fair, but you are not playing with them, then you should consider why you have made the choice of not switching to LP. And if it is because you don't want to play the way you would have to with LP, then, you should just learn how to play against LP and stop blaming equipment for weaknesses in your game that the equipment choice of LP would allow an opponent to exploit. Emphasis: a weakness in your game that LP would allow an opponent to exploit. A productive response might be to thank the LP players for pointing you towards aspects of your game that need to be improved.
As far as the burden of learning being put on any one kind of player: for anyone to actually improve their level of play, learning the skills of reading spin, being able to see the spin from how the ball bounces, how it curves in the air, how it arcs or does not arc, or how much spin you can see is on the ball, those are skills that are needed by ANY player who wants to increase his level of play because, when you play higher level players, whether LP, SP, MP, Smooth, Loopers, choppers, blockers, chop blockers.....when you are playing at higher levels, you WILL BE exposed to higher levels of spin. You can't get to those levels if you can't read and respond to that spin. If you generate more spin, more spin will likely come back.
Table Tennis skills are so much about learning to generate spin, to read spin, to learn how to counter and otherwise handle incoming spin. To ignore this, is to ignore what makes this sport what it is and if LP forces certain players to assess their weaknesses and improve certain skills that would make their overall skill set improve, then LP should be seen for what they are and welcomed.