It seems that some aspects of the buffs/nerfs are misunderstood.
According to World of Logs, other cleave specs are within 5% of us on any cleave fights, on average.
Mathematically, BF has been contributing 30% to 40% of our damage, so a 75% BF nerf means that on a cleave fight, we'd be doing 70% to 77% of the damage we're currently doing, should this nerf go live. So I'm fine with bringing us in line with the others, but this is overdoing it by a large margin.
Hell, given that the energy regen cost is still there, it would be questionable to use this ability at all.
Now about the AP increase from vitality, from 25% to 30% - it does not mean a dps increase of 5%. Because:
1. Obviously, we already have 125%, and need to refer it to that. 5/125 is 4% AP.
2. Our abilities do not scale perfectly linear with AP, and our DPS depends on ALL of our stats, not just AP.
Do not confuse Vitality with pure damage boosters like Assassin's Resolve or Sanguinary Vein.
I would expect a single target dps increase of 2% to 2.5% at best, which is not quite substantial, but welcome nonetheless and would close the gap with Mut.
I believe the overall goal is to make combat viable on any fight, not just cleave-friendly encounters, and it's something I definitely support. That being said, a 75% nerf to BF is way too much, and could potentially make combat weaker than Mut, who still has the pseudo-cleave via multi-target venomous wounds.