No Bad Sport doesn't need to go, It does need tweaking but it needs to stay.
Unlike GTA IV, GTA V Online isn't about going around mindlessly killing people, It's about going jobs, missions races ect.
If you want to go around killing people more power to you but go and find someone who wants to fight back, Don't get in your car to kill a passive person because they won't fight back and killing someone in passive mode with a car should get you an automatic bad sport.
I think any person who kills another person who is in Passive Mode should get a bad sport,
You can tell when a person is in passive mode, So when you shoot someone and nothing happens you know they are in passive mode, Don't go and get into your car and run them over.
It's not fair since people in Passive Mode who are most likely on their phone or doing something at the time so they don't see the screen and someone driving right at them and if we do notice we can not defend themselves and it takes 10 seconds to get out of passive mode so by time you get out of it you're already dead.
If you want to stop being labled a "Bad Sport" then play the game correctly and find people who want to have gun fights and leave Passive People alone