That's how I interpreted the BoV buff as well - to make it more viable in raids. If anything I'm expecting to see huge HPS cheesing in farm raids (BoV+Sac+HA+SW)
To be honest, the buff came totally out of nowhere - I still don't feel inclined to use it in raids even if it's way more mana efficient. I bet it was buffed to convert hpals struggling in m+ dungeons to start using it.