That and the scenes in the Anime which they blow up like nothing else despite it not being that impressive in the grand scheme either. It's as bad as MHA where they go BEYOND out of their way to wank the shit out of it and then throw in godawful calcs to make their point.
My nigga... no they don't.
I say this as an avid Harry Potter reader in the past, their hax is extremely mid as
@Terry stated. You can literally no sell a good chunk of Curses by just having more willpower or if the user isn't pissed off/angry enough(This is why Harry using a Crucio on Bellatrix when she not only killed Sirius but then talked shit to him point blank, barely did jacksquat). Avada Kevra is the only spell worth a shit and it's not instantenous and it only just makes you die but does nothing else and you can literally move away from it or have cover against it(Even if chunks get blown away).
The rest of their Hax/Versatility is either extremely pathetic or very mid(Apparation can literally get ganked mid-usage, that's why Dobby died in Deathly Hallows)