Flesh giant mana increase from 8 to 9 makes no difference because most times Warlock has damaged over that to make it free.
Darkglare is actually a buff because if yoir smart you don’t play him until turn 4 / 5 so you can build up combo. Health increase makes it harder to remove.
Incanters flow isn’t a nerf at all. Mages spend an extra 1 mana to get 29 mana worth of discounts. Plus spell discounts isn’t the issue the problem is their card draw.
Demon Hunter nerf was massive and it was required as it was worse than mages when it comes to solitaire decks