It was unplayable on some 900 series and Polaris cards but both manufacturers fixed that in driver updates. It certainly has a lot of problems, but if they had been fixed in a post-release patch or two it would have never been made out to be a big deal or a go-to example of a terrible port like it has. Even Durante said at release it wasn't a bad port, it just needed a patch or two and it could be a great port, those patches just never came. It's common for ports to release in a state similar to Nier did. What's not common (for publishers other than SE) is to have no intention of supporting their release no matter how many problems arise, and then turn around and blame user error or user PC issues for any problem that arises.