It’s also a moot point, IMHO. I don’t think there’s anything much either pilot in Viper 1 could’ve done to avoid that collision. Inverted as they were, the only place they could’ve gone in a hurry was down - right where Viper 2 was, and not helpful. For me, this was a rapidly-developing situation where they had few/no options available to them. The fact is that as formation lead, there are times when you have to place complete faith in the other formation members not to hit you.