Miner "grenadiers"

I see many mentions of overtuned things and mobs but is it just me or do the miner mobs that throw out 3 grenades feel a bit overtuned too?

Even as normal mobs, one explosion can chunk 2/3 of your life (full res, 2,2k life and almost 1k ES), not to mention when you get shotgunned by 3 grenades.

If there's more than one standing on a narrow bridge, GL killing it without ranged attacks.