While I'm sure some did finish the demo, it seems like a lot of people dropped off the demo almost immediately.
The demo has probably done the game a great disservice because it takes a few minutes to get fully acquainted with the feel of the game and once it actually clicks, it feels really good and is fun to play. The accessibility options work well for reducing the chatter and making movement feel better, too, but a lot of people didn't even get far enough to even attempt to fiddle with the settings. The demo also defaults to easy, which is another issue. I think they really should have just spent more time making the demo a proper tutorial and introducing mechanics one at a time, then opening up to the bigger demo map rather than just immediately dropping you in with a minimalist explanation.
Overall, it looks like it's going to be a great game but the demo definitely has set it back a bit.
The discourse around this game is going to suck, and a lot (not all, but still a lot) of it is going to be vitriol from those who immediately discarded it within minutes.