I see 4 things wrong with that engagement.
1) Wilbur left Cashew to fend for himself in a 3v1 so that he could pick GvtMule's con because GvtMule was in way over his head.
2) Wilbur's gunnery was atrocious.
3) Those 3 guys couldn't kill Cashew in a timely fashion.
4) Wilbur's target fixation caused him to not realize he was about to get flamed and I didn't see any 6 calls from his buds.
In the end it's the same old argument between the BnZ guys and the TnB guys. Up a new plane and try again, just try to not be so sloppy. (I can talk, for I am the King of sloppy flying and bad shooting.)