That sounds like more than a just theory, did DPC ever address this or is it just a really strong belief?
Personally, I don't think anyone other than Quinn has a chance to grow into a main LI (even that is very unlikely until the later episodes) but considering that Sage is currently the only true DIK romance path, having another to balance things out wouldn't hurt. Scoring side girls and random strippers could provide that balance but so far they're clearly not exclusive to the DIK path.
Also, Quinn and the MC in a "Bonnie and Clyde" type of romance gets me moist.