Act 4, The Prisoner healing from minions

I'm playing an Infernalist Summoner, pretty basic build with Skeleton warriors/arsonists/clerics, been having a pretty fun time until this boss, it's driving me mad.

In his last phase he gets new moves, including a blood AoE attack that heals him to full if it hits you. The problem? He heals from YOUR MINIONS if he hits them, which he does everytime because even with the command you can't get your whole army out of the way

Are... you... shitting me?

I'd understand if he healed a bit from them since minion builds are kinda easy to play, it would be pretty fair trade but heal to full every damn attack?!? Who greenlit this boss?

Look, i absolutely love the game and the new Act but if beating a main quest boss means i have to respec away from my Summoning build, which is the whole character fantasy of my toon, i don't want to play.

Hope you'll playtest new bosses better with different builds in the future, i'll return in the next season.