And at this level of imprecision, that claim is true!

Animal protein has a good balance of amino acids. Many plant proteins do not. Sure, you can mix various plant proteins to get a good balance. But if you don't know what you're doing - getting all your protein from beans, for instance - you can end up with a deficiency.

Maybe rather than say the problem is "an overabundance of conflicting information", they might want to improve the quality of the information that they push.

I don’t know anyone who believes nothing that hasn’t been statistically proven. You can’t operate in real life that way.