There felt like a lot of people who really wanted CP to be GTAV and were extremely upset that it wasn't.

There was also a lot of angst from people who saw the words "open world" and expected it to mean some Second Life-esque escapist experience, rather than the actual meaning of open world, as in there is a big environment where you are free to roam around and do stuff in.

Misled expectations from the marketing hype absolutely played a key role in all of that furor, but at least for me, I tune out most of it since I like making my own opinions on things.

There's a TON more that could be said but those are the three standout points from my perspective.