So instead of workers hanging out at the big box home improvement store wondering if a contractor will scoop them up that day for a few bucks and a sandwich (and said contractor wondering if the work will be any good), these matches will be made by an "Uber for x" app? On the one hand, why not.
But in this context, the Uber methodology would be useful for busting through the archaic city approval processes + frivolous environment lawsuits aka the prime driver of the housing shortage [1]