As someone stated earlier, the MSQ roulette is for new people who need to do it for their MSQ - not for veterans (but you as a veteran get a very big chunk of xp as a reward for doing it).

Before when you could skip the cut scenes, if you were new you had two choices, 1) skip the cut scene so you could participate in the fights or 2) watch the cut scenes and miss the actual fights because the rest of the group wouldn't wait for you and/or yell at you and possibly kick you for not skipping the cut scenes.

SE was tired of new people who were going through the MSQ for the first time having to make those choices. So SE decided to make them unskippable (which I believe was also a suggestion on this forum) and then boosted the xp significantly to make it worth queuing up for the MSQ roulette for veterans.

This is working as intended. If you don't want to sit through the entire dungeon and all cs then don't do the roulette. Yes sometimes there isn't a new person there, but that's just how the roulette works. Maybe in 5.3 SE will be adjusting these two MSQ dungeons - guess we'll have to see.

edit: grammar