When a capship dies why not divide the XP among the people who killed it according to the % of damage each player inflicted?

Yeah, this would be much better. Then you wouldn't have to try to time it to get the last shot in order to get any xp.

it should be standard for ALL kills, not just capship ones... in fact, I think it is with hive bots and the like - the reason you don't get XP unless you make the kill in BS and such missions (and devs, feel free to correct me if I'm wrong), is that the mission determines the amount of XP, not the ship (if you weren't taking the mission, you'd get NO XP for killing it) and the mission only records what you kill (as in, deliver the final blow)

I deduced this by the fact that you can get XP for killing unbots, if you're currently engaged in a BS mission.