For all of its premade issues, let's be real...
Dynamic queue is empirically better than previous ranked. I take both being able to play with less than 5 friends/duo with no disadvantage, and basically always get my role (if you can only play ONE role,you prolly shouldn't be in ranked), plus distributed bans... I think it's safe to say that it IS better. To address the premade problem, IMO they should just bring back the MMR penalty (i . e. your opponents are better) when you play with friends, just by not as much. I do think that it is good to incentivize people to play with friends, and all though the new system goes too far, it is most definitely better.