It was bad. He was clearly seething and pissed off with people who, in the main, have now gone. It probably wasn't advisable but it was definitely honest.
He's been upleat all this season and has commended the players even when the results aren't there. He seems happy with his lot and there have been no excuses
I was one of those who thought he probably needed to have a look at himself after that interview but, to be fair, based on what we've seen (defo in terms of team spirit), what he said seems retrospectively merited.