An emergency fix on any day is a recipe for disaster. Perhaps the fix itself takes just 15 minutes to code, but they still need to do QA, and finally let it propagate to their many DCs. If they are promising (?) the fix to be finished on Monday then it still sounds a bit of a rush job unless the error was an obvious one and can't have an adverse effect on other system parts.
Google can very well afford a couple well paid techs to identify the root cause and start on the fix even on a Friday evening.
But as they didn't - you can draw your own conclusions where Google's priorities are.
Biting the hand that feeds IT
