Tone policing is like the least constructive criticism ever. Ditto "uncouth" what the fuck does that even mean in this context. He opened with that question for a reason, he wanted to set the tone, it let Molyneux know the line of questioning he was in for, it was a great hook and a great opener. It was a brilliant choice.
It fucking means that professional writers and interviewers can get at the same content without initiating an adversarial interaction (like this one). "Pathological liar" is an unflattering characterization at best. Right off the bat, without word one from the interviewee, it shifted the focus from the issue, that issue being Molyneux's history of misleading claims and abrupt change of tone after product release, to the interviewer-interviewee interaction.
It wasn't brilliant. It was clumsy. Instead of laying facts out on the table to make a case, the reviewer gets too tangled up in the interaction. He cast accusations ('But you did this! But you did that! What about the money?! [laughs]') while Molyneux wriggled around. Because of that he doesn't even get to the point until mid-way through.
The interviewer comes off poorly in that light, and because of that too much of the conversation becomes about the interviewer and not the issue. Jim Sterling did a better job of analyzing Molyneux's pattern of behavior by calmly laying out the facts and saying "look, don't you see?"