Thanks for playing the game again.
You get the weirdest issues for some reason, I could never recreate the no skip warning issue for slide cinematics you reported last time. I'll look into it but you should consider skipping the level since you can always go back to it later with the level selector.
The pariahs are meant to kick your butt, that's intended. The idea is that, if you can't kill them in one cycle, it's better to either debuff them or leave them alone because their damage scales as they take damage so a Pariah at low HP can one-shot a unit. You can't leave them alone forever either because their skills inflict recoil so they will get stronger regardless. You only need to defeat a single one to unlock the bestiary entry on them.
It's actually one of my favorite enemies despite how many issues it has caused.
Anyways, thank you for the feedback again.