I can only speak anecdotally, but I definitely have seen Crystal Tower come up quite a bit less since the changes to roulette requirements. I actually see people leaving Ivalice and Nier raids now because they wanted Crystal Tower (probably the people who exploited by removing their armor before).

The devs accomplished what they set out to do, in my opinion. They never promised it would eliminate Crystal Tower from the roulette, or even make all raids appear at equal rates.

24-player alliance raids don't belong in the same roulette as 4-player MSQ dungeons. Also, if you put them in there then the people who want Crystal Tower will leave if they don't get it, and it will not help people trying to complete their ARR story. The rewards should not be the same, either.