I think there must be a technology answer to this issue. The problem appears to be that people want the spin of the ball to be highlighted to help make watching the sport more appealing to the general public with no understanding of the game. However by colouring and marking the ball in the visible spectrum this means that the ball becomes both much easier to read and distracting and confusing and wearing for the player. I think the answer should be to use markings on the ball which are not visible to the normal human eye, that is use markings which are present in a different part of the spectrum e.g. UV or IR. Suitable lighting and camera equipment can then be used to film and show the spin of the ball with absolutely no impact on the players themselves.
I assume the major issue is to try to improve television/video appeal and audiences for the sport rather than live audiences. However even for live audiences those That wished could perhaps choose to wear special glasses to show up the spinning ball.
I also believe the sport should be looking at all the ball tracking and measuring technology which is already available for adaptation from other sports. What about maximum ball speed measurements and readings displayed on court like in Tennis, ball tracking replays showing the full shot trajectory like those used for Wimbledon line calls, nicks meters like those used in Cricket, cameras inside the net and the table. Also far more use of over head cameras, or indeed cameras on small drones flying high above the table.
However there are also many many other things the sport could do to gain visibility and publicity and raise its media and public presence. I can only presume there is a lack of imagination, drive, marketing knowledge, and marketing money in the game. We have a great product, but there are many competing sports, so it's sell sell sell boys and girls.