How come these points are just given as regular xp points and not objective xp? like on crash site the only objective points are given for holding the site. Why is it that an objective defend kill or killing an enemy on the objective, or getting a guardian to someone who is on the objective aren't objective points? We know that in these gametypes not EVERYONE can just sit on the site. That would be so easy for airstomps to get 5 or 6 kills if people did that. Allowing objective points to be given for such defensive or offensive feats would give people who are better outside defenders a chance to get objective points too and possibly have a chance for MVP if they were to from time to time add the regular objective points to it. Some people I have seen are really good outside defenders but get little points on the objective when they are the ones REALLY doing the work to secure those objectives and protect the other people so they can sit and get endgame objective points. Those people should have a chance for their good defending to get credit for them.

It takes bandwidth and computational power to achieve this. Imagine having to check how,where,when the enemy was aiming at the time of death.

you don't have to check it. Just make guardians of people taking points/spears/relays etc, kills from the paint/holding relay/taking spears etc, and kills of people on the paint/holding relays/etc be objective xp points and not standard points.