Sure, you don’t risk a high speed collision to prove a point, but I have seen a few angles and freeze frames, which show Mir leaning on Jack first, and apparently on the overhead which I haven’t seen Jack just keeps his line and doesn’t move. Really hard for me to judge since I was half asleep and heard rather than saw it live, but Simon Crafar was condemning Jack immediately apparently from the pits with no angles available at all.
Some elsewhere are arguing that Mir overcooked the corner and lost the right to the racing line and it was up to him to rejoin safely, and that if he thought it was dangerous he could have rejoined behind Jack; I don’t know what the rules are in motogp any more particularly with the variable enforcement, but he wouldn’t have been allowed to keep the position in F1. In both cases Mir made the riding error imo, RD obviously didn’t regard the incident as Jack deliberately riding into Mir and Suzuki haven’t appealed; perhaps it is just RD being spineless as you say but they have penalised the likes of Zarco in the past, and there seems no reason for them to favour Jack over the defending world champion. I guess if Jack had the final opportunity to avoid contact he should have done so regardless of who had the right to the line, but Mir must surely have known Jack was thereabouts and if he says Jack was looking at him it seems likely he could see Jack. The first incident was just a blatant punt to which apologising makes no difference imo, which RD have normalised by allowing Rossi to get away with the Gibernau ‘pass’ then allowing MM to get away with emulating same vs Lorenzo. It has also been argued Miller wouldn’t have been where he was without the first incident.