"As long as you are doing something they can make it to where you get points"

That's the problem. What if you are NOT doing something that can be tracked? There's a variety of options, usually defending ones. Defending a node in Arathi Basin that isn't being attacked. The flag carrier in WSG at moments when he's left alone. Moments when you are doing what it takes to win, to be a team player, but aren't doing something trackable.

How are the points awarded anyway? I assume you're not thinking of some sort of constant ticker that awards points throughout the BG. So then it's a total point award at the end of the BG as it is now. Or separate awards through the BG for achieving certain objectives (like capping a flag). Again, how do you "rate" each player? If one player does one million damage and another only does one thousand, do they get the same points? You see the problem if they don't, right? If the person who does more damage gets more points, then the only "right" way to play the BG becomes to ignore defense, fight at the front lines and snipe HKs.

I guess what I'm asking is this: How would you award points differently in Rated BGs than in normal BGs? How do you rate an individual's contribution so that each player is properly awarded in accordance with their contribution? I clearly didn't understand your idea well enough.

Also, what is your ideal "casual RBG" playstyle? Since you say it's completely different from solo BGs. Your only queue options are 5-man or 10-man. Anything else requires solo-queue option.