1.) Individual score is meaningless. What you personally score in the game does not show ANY indication of how good a player you are. You could do everything right and get zero points at the end of the round. Literally.
2.) Points for kills are not the only thing involved. And this either won't affect "fear of death", which is a silly concept in a video game anyway (where none of us can really die), or it will simply have the obverse effect where everyone camps and plinks for fear of dying and losing score. But, this system also forgets about points for caps and points for resupplying.
If kills are all people care about, they're playing the game wrong.
What matters most is capturing and holding territory. Sometimes the best way to do that is to just BE in the cap zone and keep your head down so it doesn't get shot off. That means not firing back at the enemy because it reveals your position.
Just as you could do everything right in a round and never score a point, you could do everything right in a round and never get a kill but still get points. The game's set up that way for a reason. And even then, the game doesn't put a numerical value on HIGHLY valuable actions because it'd be way too hard to determine contextually.
Anyway, I get that some people want to see their scores. But penalizing people score-wise for anything other than a TK is a bad idea, given that it will deter a lot of other GOOD behavior. Generally speaking, there is NOTHING good that comes from a TK, or at least the bad so far outweighs any possible good that it makes sense to penalize it.
On the other hand, there are PLENTY of situations where dying, even without scoring a kill, is still highly valuable to the team. Sure there's bad situations that waste reinforcements (IE: player who charges into artillery repeatedly, player who keeps attacking uncapturable location, etc.), but those don't outweigh the good that can come from sacrificing yourself sometimes (IE: player tries to toss a satchel at an enemy tank, player draws fire from the MG so his sniper can take it out, squad leader charges forward to toss smoke but dies in the process, and most importantly, player charges into cap zone repeatedly only to get killed in the process of capturing it).