I think a team consisting of Lúcio, Zenyatta, Widowmaker, Pharah and Hazard has no real chance at winning. Even personality-wise, none of these heroes actually have business with each other, and the only snergy I see is Lúcio charges with Hazard while Zenyatta designates a target.
Hazard is a weak tank.
Lúcio and Zenyatta don’t bring enough healing to the table.
Pharah’s hitbox is too fat against hitscans.
Widowmaker deservedly dies by flankers.