Oh, it is causing pain already. Recently I pitched to a friend fixing a component as a great project for a very junior engineer. Only to find out that neither his nor my team has any sufficiently junior engineers on hand. So the oceans will keep getting ever so slightly boiled until we hire some, or one of the too senior engineers runs out of more important things to do. Sure it won't bring Google down right away, but having cruft like that accumulate kills efficiency in the long run. And Google thrives in cutting those epsilons.