Yeah, why would someone ever consider their moral responsibilities and credibility before endorsing a product they do not understand the technical details of?

I get what you're saying, but that would then mean that you couldn't advertise essentially anything. Chances are very high that you will never get an endorsement/advertisement deal for a product that you do understand well.

There is lots of advertisement you can do without making misleading (or even downright false) claims.

Not that advertising mobile games or g-fuel is great, but you’re at least not pushing (dangerously) false claims on people and imperiling their privacy and security.