Speedruns wont' work without 4people coordinated and usually overgeared. Also, the bonus is only once per day. That defeats SR DR farming right here.

I agree with op, the irony is it's promoting non social play. I like to play with FC buddies, but it will cost me alot of rewards to do so. Now i'm stuck playing with 3 pugs who can't form and lasting teamwork with cuz they probalby on different server. At least allow duo queue in DR. No need to allow solo Q. So many DR i've done had 3 DR players, lol.