Or Luffy isn't dumb enough to counter claim an obvious fake, and push him another way. Or Luffy is inactive.
I admit he could be bad, too, since Adam says that he has his reasons. But we can't jump to conclusions without Adam actually telling us what those reasons are.
If we start doubting flavor claims based on unverifiable info, then we risk setting ourselves in a paranoid positions regarding all flavor claims. Which would then negate our clearing process.