Excellent point. I mean, I got caught up on the sheer creepiness factor of recording people without their consent, and the moral shadiness of it, but there's this, too. Hank is pretty much taken a group who have, on panel, declared themselves to be outside of world politics, and is committing an act against them that could very well be taken as a declaration of war.
The Avengers are using Celestial technology these days though, so I'm not too worried that Hank is going to be successful with his little porn cam endeavor.