I'd just like to throw out there that CT series raids also had 1-3 hour queues before they added alliance roulette. Like it probably wouldnt go back to being quite that bad if it got kicked out of the roulette, given that it is required, but like... it also used to take forever and a day to do because nobody was doing it.
And like personally i never queue for msq roulette because i dont want to deal with the cutscenes in the other dungeons there so i at least would simply continue to not do so if they moved CT into that roulette instead.