It'd be nice if they were willing to share that data with the players. I've held the belief for a long time that Secrecy for the sake of secrecy is a poor way to go. If there's not a legitimate reason for keeping something a secret, then put it out there if it's requested.
I get that they don't want emotional responses to things to dictate their changes, but the problem comes when that's exactly what they do. Two prime examples:
Ghost - Ghost was blown way out of proportion, largely by the Youtube and twitter community who simply couldn't handle the fact that someone didn't show up on the Radar as a free kill for them at all times. So they exaggerated the problem, and complained for nearly two years until Treyarch basically nerfed Ghost to the point of being useless. But they didn't just stop there. They made the Counter-UAV a mid-level unlock, meaning the ONLY way to counter the UAV is to stand around spinning in circles, hoping to find it and shoot it down without getting shot in the back because you lit up on the radar like a Christmas Tree.
Quick-Scoping - In Black Ops, they found a workable fix that pretty much killed quick-scoping. Initial zoom sway that really didn't impact legitimate sniping. But once again, the Youtubers and Twitter people completely blew it out of proportion and exaggerated the claims. So what happened? Once again, Treyarch bowed to pressure and gave them back quick-scoping. Infinityward then followed suit and practically turned it into a feature in MW3.
Just two examples where they allow emotion to dictate their changes, completely contradicting their earlier claims in that article. In the end, I hope they're willing to share that data beyond simply saying "our data says you're wrong, too bad.". I also hope they take a hard look at some of their "features" they included at Launch and decide whether or not they allowed Emotion to dictate those features, or a logical assessment.