Galilea + Miko can backdoor?

So I just went on a casual meltdown and straight away, Miko and Galilea backdoored and COULD NOT be taken down.

Even when the turret joined in,her health wouldn’t budge and Mikos heal brought him back up to full in the space of a few seconds.

This NEEDS to be addressed either by raising the damage of the turrets to prevent instant backdooring or sort out her regeneration…

Opinions?