I dont think its fair to expect Elon, or anyone, to have done due diligence beforehand in a situation when it would have been impossible to collect the relevant info without some shady tactics. Unless you mean his team should have employed shady tactics to gather that info.?

Sure he may be employing this as a stalling tactic, but there’s no obligation for him to treat the Twitter folks with kid glove either. This is what high stakes negotiations are about.