How are we to interpret the pictures?
1. - The pilot is in charge of his own direction. So he who's nose is touching the other's plane earns a collision.
2. - The pilot is in charge of his own direction. So he who fails to get his airframe out of the way earns the collision.
Example (1.) is a given if you subscribe to everyone will avoid what they can see the best they can. Aside from your target suddenly pulling up during your diving pass and you earn a collision while he is unscathed. Who is responsible if the target pulled up on purpose? The code in my client says I am.
Example (2.) we would all like to be the innocent victim of others and not have our fun ruined. Why am I responsible for the other player's poor judgment? The code in my client says I am.
I don't know how to measure this against a fairness ruler. I'm sure HiTech had some moments when he decided on the current collision modeling. A micro focused granular solution to taking a collision in your kester. Most states I've driven in say you are in the wrong when your vehicle snuggles the one in front of you in the rear end. As soon as the collision is not flat on in the rear end it's up to the insurance companies to decide. So Hammy specifying such a narrow cone of impact and who is responsible has merit. But, in a very narrow definition.