Mentor roulette issues

[Timmyftw]

So I queue up for a mentor roulette, expecting to help some people with an extreme primal clear or something.
After loading in... I realized it gave me Castrum Meridianum, a main story quest dungeon.
It wasn't even anyone's first clear, no bonus for wondrous tails. ( I just was forced into a slot for Main story roulette it seems.)
Then I sit for about an hour watching cut scenes I've seen before. (which can't be skipped anymore.)
I figure fine, I don't mind helping, but upon completing the story dungeon
I realize I only got the 30 tombstones of creation and 10 tombstones of mendacity.
I spent an hour of my time doing this for that little reward?
Considering Main story roulette gives 100 creation, 50 mendacity... I could of just queued for Story roulette and gotten more out of it.
It makes me feel a bit reluctant to even do Mentor roulette anymore.

I suggest if Mentor roulette is going to include story dungeons, we should at least get the same amount as the Story roulette.