It's not really going to help anything. If premades really wanted to play with real people in the queue that we have now, they'd still all queue solo or whatever at the same time and still get in the same party. The only benefit that I can foresee over the current system by removing the ability to eight stack in FL is that solo players in the same GC as the premades will have a chance at getting a queue pop.

I don't like premades as much as the rest of solo players (win rate dropped 6% overall since Seal Rock, about 75% 3rd places in the last few weeks, rip Adders) but there's not much you can do to stop all the skilled PvPers going to one GC and stomping the other teams.