While it's a little annoying when me and my sister are leveling and we can't do certain roulettes together...I also tend to play solo quite a bit and given only allowing some roulettes is for queue management, in the long run I think it's still a good idea.

For every every person that has a few buddies lined up to queue with, I bet there are probabaly 10 times more solo players.

If you're leveling your 1st class, then just queue solo. If you have end game level characters...then currently you can do 50, 60, experts, normal alex and void arc together.