In an emergency, that sort of thing even happens at Google (more for their smaller services, and almost always in the form of auto-LGTM hot-fixes bypassing the

In an emergency, that sort of thing even happens at Google (more for their smaller services, and almost always in the form of auto-LGTM hot-fixes bypassing the normal checks rather than actual live-editing of a script or binary, but even that latter thing happens occasionally). There are checks and controls, but an emergency for a billion users is a big deal.