Hard to say what went wrong. I thought he looked uncharacteristically flat in that race. When he took the lead I expected him to push the pace and string out the pack. When that didn't happen but he just continued at the same pace while looking somewhat flat I started to get a strange feeling.
I'm Norwegian and listened to the interviews. His voice was slightly more raspy than usual, but just slightly. So might be telling the truth. If he was 100% would have expected him to make it more difficult for his competitors.
As for all the hate he gets, I get it. I'm Norwegian and it's kinda hard too root for him, though I still do. He has this personality that rubs me the wrong way. Maybe it's an age thing. He might be a bit immature still. Henrik used to be like that too years ago be seems more likable and reasonable in recent years.