1. Hazel in THIS story was before volume 5, so Coeur couldn't know how strong he was. Same is the same for Watts. Also Tyrain was PLAYING with Team RNJR in volume 4 until Qrow arrived, and the whole point of him being there was to delay them. Being the madman he was, he thought it would be fun to torment them.

2. No one ever said Ironwood was the villain, but Jaune had help many of the other characters and they wouldn't agree with Ironwood that even if he broke the law, he ultimately 'redeemed' of his illegal acts in the eyes of most people. He had done so much for the Teams, and all of a sudden a guy that was part of the reason everything that happened did happen (The atlas robots getting hacked was due to them BEING there in the first place) comes up to them, declares that the guy that just saved Beacon and by extension in a way, Vale, a criminal that needed to be arrested AGAIN which was ALSO a reason the Grimm attacked. You can think they wouldn't think too kindly of the Atlesian General.

3. I recent read Not this time, Fate and I think you can't say how Jaune should have acted in that story unless you have lived over thousands of years and died uncountable times. Jaune in that story has and it can be understandable