I think this is much, much harder to pin down than you seem to be implying.
It isn't particularly hard to find research that, at least partially, seems to corroborate or lend credence to some of the more asinine beliefs ripping US public health to shreds. It's also not particularly hard to find people with degrees or certificates, people in positions of authority, that spout that stuff. Tylenol? Yeah. If people take this law to mean that "if you see the Qualified Expert^TM^ badge on a video, you can trust the information," then I fear misinformation might have a new weapon.
What I mean to say is that, at the end of the day, it seems like it'll be up to the state authorities to decide (1) who counts as a qualified expert, and (2) what subjects require qualifications to be discussed, and I do think that both are dangerous premises.
I'm not certain it's a bad idea though, I really can't say which side I land on, for now.