My point of view... from five feet away.
This was just one of those unfortunate accidents that happen occasionally. The owner of the jet took the high road and moved on after realizing that no compensation would be paid.
As for the Mustang pilot, he did not try to sneak away like nothing happened as some have insinuated. In fact he waited for pictures to be taken before moving his plane. And he didn't just land uncontrollably into the pits. As a matter of fact he made a nice wheel touchdown right in the middle of the designated runway. But as sometimes happens with a small ruddered warbird, the 5 mph crosswind got the best of him as he slowed down. So he WAS in control, right up until the point where he WASN'T LOL. He explained the obvious, that the wind caught him and he couldn't straighten the plane out with full rudder and even used full aileron too. Maybe he should have given it throttle to get some air over the rudder, or up elevator to plant the tail wheel, or kill the engine to lessen the damage and not use aileron which could make it worse (adverse yaw). But whatever, the accident happened.
So next some guys start on this guy about his piloting skills and how he should learn how to land an airplane. He felt insulted and at this point it started to get a little heated and he said the jets shouldn't be parked in that area. I not so politely pointed out where the flight line was and where his plane ended up.
The owner of the jet was not around when all this happened and someone went to look for him. The Mustang pilot started to walk away and was told to wait for the owner of the jet. I don't think he realized that the owner wasn't among the guys giving him a hard time so it's not like he was trying to sneak off. When the owner showed up the two of them had some discussion which I was not trying to hear. So if the guy was a jerk after that, I have no idea, as I left the area.
I'm not trying to stick up for the guy but some facts and a little empathy help to explain the situation he was in.