I hate to agree here (not with Polynomial, but the concept), but I know premades will get fewer games. I and my friends tend to only play premade games, and aren't dishonest about it when people ask. And 90% of the time, people quit. Heck, most of the time, people join a game I host, do a lookup online, and leave (provided I'm teamed up).
And we're not even very good
I'm not against this idea though, it's awesome, just saying, I can see premades having more problems finding games.
I also find a point to agree with you too - I think the reason people dislike premades is because so many are all about the stomping. Maybe this will, in the long run, fix that, and good 'safe' premades will become known, over nastier pug-stomp ones.