Fine. Whatever. It wasnt even strong enough to stop Wanda...so he's basically doing the same thing Tony did in making Vision in the first place.Before Wanda even did the hex he tried to manipulate Wanda into reviving Vision which according to the Sakovia Accords is illegal. He did not really care that much about the hex his main objective was to gain a sentient weapon.
Literally all the Avenger said fukk the accords. Was Tony any different when he made the nano tech suit after the accords? Noone cares about them anymore.