Blood spells still don't heal accordingly. Blood blitz and barrage sometimes don't heal you at all or heal you for 10% only.
Tbh blood barrage/blitz is pretty much useless now. It heals between 2-9 max, even though you hit 70+. They pretty much ruined it.
70+ with mage? wat
IMO that, if anything, is broken.
Or do you mean total damage to multiple targets?