Every TES game is seen as a dumbed down, pale copy of the previous ones by many fans. Morrowind happens to be beloved probably because it was the first game which cemented the ''modern'' Bethesda and wasn't too pruned compared to Oblivion and Skyrim. Personally, I never liked the franchise all that much, and the only good that came out of Fallout 3 and 4 is that Bethesda could give the licence over to Obsidian so they could do a really great and, IMO, proper Fallout game with New Vegas.
Anyhow, one thing CDPR does do better than Bioware is the value in DLCs. There's no question that Hearts of Stone and Blood and Wine give you loads of bang for your buck. My only beef with them is that they are entirely self-contained and divorced from all the other game content, while I myself like to see DLC content weaved into a main plot, like Trespasser did for Inquisition or New Vegas's DLCs did for that game.
That said, it's unknown how much of that is a result of their ''generosity'' or simply that they have a unique place in the market. Since they employ loads of Polish workforce, I assume the cost of building games and DLCs is much lesser for CDPR, and the GoG platform adds a steady source of revenues too.
It's kind of the same as Valve with Steam (albeit less pronounced); they can afford to be generous with their in-house games, since they make so much money off their platform. The low prices are a way to attract consumers to said platform. Which is a great system, but I don't think we can just say they happen to be oh so generous. They just make their money via other means.