Mentor Roulette Working as Intended?

[Canadane]

This. As long as it doesn't already have a mentor in the party, it'll stick you into whatever needs filling.

My first 5 Mentor Roulettes were Dusk Vigil with people who knew what they were doing. XD

It'll even match you with another mentor if needed, just to help with queue times.
I've been in a roulette with 3 mentors before.