In my opinion 24 man and 8 man story mode raids should have never been not part of the MSQ. Their story most of the time ties in a lot with the MSQ anyways. Except for the Dun Scaith and Nier raids which have no real connection to anything MSQ related until now. Maybe this will change in the future somehow. I also do not really see a huge problem in CT and Ivalice raids becoming mandatory because 24 man and 8 man story modes are actually not very difficult to clear. It might take a few wipes until most people get how mechanics work but they are not impossible to clear with random groups. I would agree should savage modes or ultimates suddenly become mandatory for MSQ progression but that is very unlikely.