I mean, those chops are no joke and probably must sting a lot, but say, compared to a Lesnar suplex or an Awesome bomb, it looks like the least awful option.
And regarding what you mentioned above, about context behind the use of the chop, I think WALTER can also work around in a way to make it more meaningful, if anything. If he can use it as a finishing move in a title match, chances are he's not going to spam the shit out of it against a random jobber, instead using it as a 1HKO.
Even against Dragunov he wasn't spamming it like crazy. He does have other basic offense that looks great and brutal (and safe!).
All in all I just wanna see him and Sheamus beat the shit out of each other.