Okay overall in the OP;
Helluva downgrade is fine, they don't have any calcs that would work better to replace their High 8-C rating.
The hazbin hotel tiering fix is fine ig? I don't really understand the logic but the tiering isn't exactly changing so it isn't something I'm gonna worry all too much about.
speed upgrades is fine, just applying a calc.
Vox stuff should just wait until season 2 comes out, because lets be honest this CRT is gonna go near or until season 2 releases and we already know we're gonna get a real Vox vs Alastor fight and it'll be far easier for you to get that through than what you have proposed rn.
Charlie not scaling physically to 7-C is a bit weird on the logic, because if she can amplify herself to be comparable to Adam then wouldn't she scale physically? I don't understand the logic.
I have my gripes with the Alastor section, but downscaling his tentacles and nothing else scaling is as far as i'll agree regarding the adam stuff. Also, yeah that resistance to regeneration negation makes no sense since we can see he still has the wound in season 2. Blood manipulation is likely him piercing his palm with his nails, not blood manipulation. rest of the hax you proposed seem fine at a glance though.
Adam section my only real gripe with it is removing the alastor bit (he is 100% superior to alastor) and his weapons upscaling above him makes no sense because the reasoning you gave has nothing to do with Adam's weapon.
Vaggie bit is fine
Angelic weaponry upscaling change is fine
Sinners regeneration is fine.