I view the increasing stance that people should be free with their privacy to be "bad". Third party analytics increase the perception that it's normal, common, OK, to-be-expected, etc. that your activity with one party should be liberally shared with others. Adding GA is probably a fairly minor offense, but I wouldn't call it a good or neutral thing, so it must be slightly bad eh? (I use GA; I don't like to, but it makes economic sense).
Startups do much worse though. See, for instance, apps that try to get every permission. Even if they don't use them, the fact that they ask for such permissions again instills that this is acceptable behaviour in society.
What you said, "know how people use their services" can be OK. A site doing its own analytics on data that users wouldn't reasonably expect to be private is fine (the user is already using the site, and it's fair to believe the site knows what they;re doing). Anything more invasive (in-app: web or otherwise) should get clear consent first. It's hard to give consent for e.g. GA - is that even a thing?
Windows "phoning home" for analytics introduces a new level of data collection. And most of the harm here is because MS has done so in a vague way, apparently with a broken opt-out (going off my Win10 usage and what others have said they've seen with the final release).