From what little I have done on BLM in DSR (my group disbanded mid-P3 back in early 6.1), BLM is fine in level 90 ultimate with what it currently has, that's what I'm saying though.

Level 70 ultimate, no Xenoglossy (also means no DAMAGE from Xenoglossy, which keeps getting buffed), no instant cast Foul, no paradox. Yikes.