To answer the question, they're still garbage. I'm at level 126, 75 points into phoenix/gryphon with 65 into raven. 6 bats. 35k health. -enemy resistances are all between 150 and 160 (when calculating my own into it). They're still garbage at 126. They truly struggle killing bosses and struggle with regular farming. It's just not worth it.
Either the damage is just not there from the high base levels into ways or the more likely explanation, the bats aren't inheriting your -enemy resistances properly. Damage honestly feels like it isn't much better as previous patches if at all. They survive okay but just can't deal enough damage to make up for the build's shortcomings. We had hope with this patch with the virtually untestable enemy resistance inheriting change butttt it's a loss. Don't waste your time on this build.