This is absolutely the top of my list for PC “fixes” right now, so +1, signed, President = Apoc etc. 
Playing as medic, this choice of one-key-for-all is so painful it’s ridiculous. The more I play, the more it interferes with my game - I’ve had all of the bad results Apoc mentioned, and just the wrong times. Failed revives, buggy buffs/chases, being dragged into crossfire because buffing took too long/didn’t trigger, and my personal favourite - while attempting to revive, accidentally interacting with a CP and selecting a random class because I was moving the mouse, then having to do it again under fire to get back to medic - and then being killed before getting the revive because the player wasn’t immediately targetd. It’d be funny, if it wasn’t infuriating enough to stop me playing. It’s a huge mess for medics.
I never thought Dirt3 would steal my Brink time, but it has - completely. I hope this problem is being addressed, and sooner rather than later - so there are still some people left to play with when I fire Brink up again. This has been reported and described many times now both in dedicated threads (which it certainly deserves), and extensively in the PC feedback thread, and it needs to be fixed.
As Apoc stated, this could be 100% optional. No need to force this onto people who are comfortable with the combined key binding - I guess medic is the worst affected, although I’m assuming Engineer is pretty annoying too. This also caters for controller users (even though they aren’t officially supported), who might not have another button free for binding anyway, and therefore don’t have much option.
