From what I have seen in the sales, this graphics downgrade has actually lost Cd Projekt Red A LOT of PC fans... On Steam The Witcher 3 only has 458,628 owners, which means only 458,628 people have bought The Witcher 3 on Steam (
http://steamspy.com/app/292030). Even Shadow of Mordor and GTAV sold 1 million copies on Steam within the first day of release, yet The Witcher 3 did not even reach 500k sales on Steam. I'm also willing to bet even less own the game on GoG, meaning The Witcher 3 did not even sell over 1 million copies on PC. While if you look at The Witcher 2, it sold over 1,110,055 copies on PC within its release, and The Witcher 2 was an unknown game, unlike The Witcher 3.
They have lost almost half their PC fanbase. I just hope Cd Projekt Red does not end up like Crytek (a dying company) when they sharfted their existing PC fanbase for easy console money. Crytek is dead to PC gamers. I hope CDProjekt does not end the same way, but looking at the sales, it does look like they are.