Am I crazy? Delves 11 have become VERY hard in Warlock, haven't they?

Hey, I just finished a level 11 delve, and I've noticed that compared to yesterday, before the fixes applied last night to Valeera, my Felguard just can't survive against packs of 4 or 5 mobs anymore.
The worst part is that sometimes he simply loses aggro, and my Soul Drain barely works on him; he doesn't recover nearly as much HP as before.

Is it generally the same for BM Hunters on your side ?
I'm really worried that Nullaeus will be affected by all this too; I haven't tried him since the day before yesterday, and I have a feeling my Felguard won't survive, or I'll just pull aggro again.

Thank you for your feedback :)