KDR is a borderline worthless metric in Conquest. I mean, every kill the opposition's tickets, and their deaths eat yours. So it's good to get lots of kills while doing as little dying as possible. But ticket bleed is essential and if you're not helping the team capture flags and push the opposition back you can fuck right off. Lost count of the amount of times I'd be on the losing team, and the person with the highest KDR in the entire match will be alongside us. Great you camped in a hole sniping, grinding to unlock more shit. Sure helped us win.
I think it's drag from the Call of Duty crowd, plus traditional shooters, where KDR is absolutely essential to benefit both your own score and the teams. The only metric of success in most shooters is being able to kill as many as you can while dying as little as possible. This isn't true for Battlefield's Conquest and never has been, though is useful for TDM for obvious reason.
This is why I sunk so many hours into TF2 CTF and Payload. And also why the first advice I give any new TF2 player is "your KDR does not equate to value towards your team, nor how to best play your class". In both TF2 and Battlefield you can smoke your team's scoreboard and sit right at the top without having close to the best KDR by doing other shit.
