I agree to certain degree that it is how you treat the outliers. However 1) they are outliers for a reason: they happen to a very small subset of users. Its not as if every other person is having this error, that particular image was up-voted because it is a hilarious error to have not because it was happening to the majority of people. You can't plan for every eventuality which brings me to point 2) it would ludicrous to assume that every single issue is taken into account and that every install will go exactly as planned. With something as big as a new OS launch things are going to go wrong, that's just the way it works. If you can find me a company that has everything exactly perfect at launch with a product as big as Windows 10 with no errors I would be very impressed to see it.
I'm not trying to Microsoft "fan-boy" or come off in that manner, it's just silly to me that people are bashing Microsoft (or any company) for things not going PERFECTLY on launch day. It comes off as childish IMO.
No offence to the poster but stealing images from a Reddit mega thread, one of which is an outlier error and the other being 2 lines of text that wasn't changed in the "help" text, does not a terrible installer make. The same thread has hundreds if not thousands of posts indicating how easy the install was, only a few people are having issues which is to be expected on a product launch.
Also if you say, " I cant remember an instance in the last 10 years when it just failed on me randomly while updating Windows", I really can't take you seriously, especially with the qualifier: that Windows updater is a "rock solid" platform.