% Health as ES Map Mod Affecting Minions

I'm fairly certain the map mod "monsters gain X% health as energy shield" is affecting my minions. This would be a positive except I'm playing big popcorn SRS and this mod is making my SRS die noticeably slower.

I don't know how to confirm this, but I tried timing it. In my hideout my SRS die in ~2.5 seconds with no noticeable ES over their health bar. In a map with 58% health as ES, they die in ~3.7 seconds and still have ES when they die.

I'm using both Tavukai and infernal legion, so a high enough ES mod seems to completely nullify the infernal legion degen.