So first people were mocking MS with #war chest memes, and now the war chest is being used as a legitimate defence as to why Sony cant do x,y,z?
Also, are you saying that Sony can't do what CDPR can, because they aren't as successful as CDPR?
I personally have never mocked Microsoft with that war chest meme, actually the first time I heard about it tbh. I'm not saying that Sony can't do it, but I don't think they see it as viable enough to invest in that. Also, there have been several times in recent years where I heard news about several divisions of Sony not doing so well, so yes, it's possible they're not willing to take that risk because of their funding. Not saying it is, but it's a possibility.
They also have accumulated plenty of user data since they started with the PlayStation brand, and adjust their business strategies accordingly.
There was a big outcry for Backwards Compatibility, and they finally listened to that. Took them long enough, to be honest (and I am still sad and disappointed that there's no PS1/PS2/PS3 BC), but it doesn't mean they
have to upgrade every game on PS4 for free, just because others are doing it as well.
Sony isn't willing to invest that way, instead opting to fund new and upcoming games, utilizing the brand new functions of the PS5. Not massively upgrading their previously released games to a brand new eco-system, for free patches.
The thing is, free isn't free.
I've said it before, Microsoft is willing to lose money on labor for that whole free upgrade venture because they can.
CD Projekt Red loves to re-release and update one of their most successful games ever. Which is completely understandable, of course. Same as Bethesda and Skyrim. But ultimately, they will make their money back that way, because that's how they operate. Heck, The Witcher 3 came out in 2015, and because of them launching on other platforms, they made close to 40 million in profit just in 2019 alone thanks to that game.
With Sony, they release a game, support it with patches after the launch, let people enjoy it, maybe add an expansion or two, and go on to the next thing. They're not obligated to give you anything for free in that regard.