I mostly agree. For instance, I don't believe there exists a conflict of interest in challenging the ethics of a competitor. Choosing to support a competitor because a company behaves unethically makes a lot of sense to me.

That all being said, I think you overestimate the probability someone will call him out on anything. When was the last time someone was ever called out for making a bad prediction, making a false but ultimately mild allegation, or raising concerns about a competitor? I've worked at places that would state publicly that their competitors steal from customers, and never heard that even questioned on a factual basis, forget someone doing some weird kabuki theater credibility sacrificing ritual.