It’s a victim of the Witcher 3’s success. Even the Witcher 3 wasn’t all this great at launch. CDPR didn’t become a beloved company just because they released a great game. They listened to feedback, corrected a lot of bugs and introduced quality of life improvements and they put out a couple of very high quality DLCs for free. This coupled with their work in GOG restoring classic titles is what earned them their reputation.
There have been so many buggy video game launches, that I suspect Sony removing it from the store is not as straightforward as it appears to be. CDPR must have done something silly to annoy Sony. Either way these are dark days for the company.