They can partially counter it if they add future content that requires the 24-man raids. The closest they've come is, I think, Bozja requiring the SB 24-mans. But even that content is optional anyway.

While I see what the OP is trying to do, I think another option is to lock Alliance Roulette based on your highest level character. If you are 60, you need to have unlocked all of the ARR 24-man raids. If 70, you need all the HW 24-man, etc etc. Of course, if you are queuing as a 50, you wouldn't get those, but it would open up the other 2 ARR raids.