On the ideas that your backhand should be a shield and you can get to 2000 as a hitter: both ideas in their stated form are a relic of the era where forehand and footwork dominated the game at almost every level. In fact one could loop with short pips with the 38mm ball. But just having a decent backhand despite the fact my forehand sucked enabled me to beat a lot of players on my way to USATT 2000. While I have a decent forehand topspin now, I built it later and my footwork for it is still situational patchwork since my knees and tendons have no real support. Backhand looping as a standard thing is relatively new, for a long time it was considered something that only advanced players should learn. This has changed completely and in fact, many older players who don't backhand loop are susceptible to players who do just because they lack the loop.
From personal experience, anyone who is focused mostly on hitting will still need go learn to loop vs backspin at some point. And unless you have really strong serves and serve return with sidespin to get popups, the footwork demands are more as getting a ball to smash/drive is much harder than getting a ball to spin as you get better. But you can try it, my coach left me to try it for a while, after losing badly to players who just chopped the ball, and beating them months later when I started spinning on my backhand , I came back into the fold completely.