I dont know how many open world games you have played...Are you the CDPR accountant latios ? It would be fine all that money spent into Marketing if the game didn't came out broken.
But Witcher 3 was a VERY stable launch for a game of this type.
Do you remember Oblivion? Or Skyrim? Fallout 3? STALKER CLear Sky (Shudders*)?
FFS, the finest modders in the world, people that make AAA games as a profession still cant fully fix Clear Sky...
Witcher 3... was refreshing. It actually worked!