AoE heal = Nynaeve in the cave in S1? I thought that was a bit of stretch too, but it doesn't represent any change to the magic system, it's just showing how a super-powered but untrained channeler is able to do something impossible in a passionate moment, which happens throughout the series.
Resurrection didn't happen, straight up. Bad makeup and covid restrictions allowed the scene to be done with any ambiguity at all, they had to use a mannequin on a same-day re-write. So, a flub by the show for sure, but not a change to the magic system at all.
A'dam mechanics were inconsistent with the books, but again, not a change to anything fundamental. A'dam are just a tool that uses the power.
Rand defeated Ishamael at the end of S1 by himself, with Moiraine literally helpless and on her knees. Just because we know it was a false victory doesn't diminish his heroism in that scene. Mat's literally a thief in the books, him stealing the dagger is the key thing he does in the first two books and makes him most first-time readers' least favorite character until he's healed and starts to turn around in book 3. Perrin killing his wife is a big change for sure, but it makes his behavior with women and especially Faile so much more believable - sucks that it's a trope. I also am one who thinks the show should have leaned into making Laila a Darkfriend, I still think that scene looks like she was about to take a swing at him, and there's the previous scene in their bed where she looks suspiciously thoughtful about him. Could have been interesting.
Anyway, there's plenty of great story in the books for all of them and the show can only give us a fraction of it. Everything indicates that season 3 will be where Rand takes the reins from Moiraine as the obvious main character, with Perrin sure to shine in the Two Rivers arc. Mat will likely have to wait til season 4 to have his big moments, but there are some indications that they're going to do the snakes and foxes in some form, so I'm just crossing my fingers until we see what happens. Which I loved doing reading the books and waiting for the next one to come out, so this is a very WoT experience for me.