I feel like the consensus is that kd is the ultimate gaming metric and getting kills is simply more important than reviving teammates, regardless of the class you choose. From an individual perspective, it may very well be so—everybody is free to establish their own priorities. However, I agree that from a team perspective, revives are just as crucial as kills.
Using kd as the primary metric to evaluate player skill does not help the case for reviving. Since playing just to avoid dying seems more boring than playing for kills, many players will prefer to go into the battlefield and get as many kills as they possibly can. This way, they can take a look at their kd and see how well they are playing the game, regardless of what happens to their teammates.
Instead of just saying “reviving is important in BF”, devs could try to incentivize it more effectively. One way could be making revives count toward kd: kills+revives/deaths. This way players would chase revives for a better kd, making team play align perfectly with individual stats.
