Sure; you risk being attacked by some random maniac every time you go outside. That doesn't make it wrong to seek some kind of redress, though.
Blasting somebody in the back of the head between points is so far beyond the pale, I cannot imagine how you think that it is just "one of those things" or that trying to punish someone for that sorta thing is somehow putting the one who got shot between points, at point blank, in the back of the head in the wrong. I'd say the time has come and gone, maybe, but that **** ain't cool, and shrugging it off is part of how the world gets worse.
If someone shoots someone during a game, that is one thing. If someone shoots a little girl walking down the street, that is at the other end of the spectrum. Shooting someone from your team in the hotel room falls somewhere in between, as does what Chris did.
Let me be clear; I have no personal beef against Chris Lasoya. I am wary of him, because he is not fully master of his emotions. I wouldn't turn my back on lots of animals, and Chris fits that category. If any other player in the world did something like this, I would argue that it is up to the victim to decide how far to push it legally, weighing the history of malice of the person doing the shooting, the serious long term effect from the attack, the likely effect on paintball if police start having to look into it when one player shoots another at the event, and so forth. Would I call police into it? No. But it isn't because I am concerned about making my country worse off in some way.
It seems to me like what happened was that one player attacked another out of malice with his paintball gun. When he did that, he kinda put the ball in the court of the victim, as far as how serious it all got.
If someone in the NFL made a tackle between plays, what would the consequences be like? A one game suspension? A stern warning?
What is wrong with America is a lot more complicated than that we let people complain to authorities when they feel they need the protection of the law. It stinks, you using any respect or concern someone might have for the good of America to try to make your opinion somehow less assailable. If you are so patroitic that you want to kill somebody over that sort of thing, you will find how valued you are as a citizen in no time.