Exactly. Why would the Series S compromise XSX games? They're the same architecture. PS4 and PS5 are not. The PS4 doesn't even have an SSD!
What about PC then? Every Xbox game is being made for PC which doesn't always have SSD and is using multiple architectures. So every Xbox game will be compromised by PC?
So you're saying Jim Ryan was lying when he said he believes in generations then? Nah, I don't think he would lie like that.
I think you should review that "generations" quote and take it in context.
"We have always said that we believe in generations. We believe that when you go to all the trouble of creating a next-gen console, that it should include features and benefits that the previous generation does not include. And that, in our view, people should make games that can make the most of those features.
"We do believe in generations, and whether it's the DualSense controller, whether it's the 3D audio, whether it's the multiple ways that the SSD can be used... we are thinking that it is time to give the PlayStation community something new, something different, that can really only be enjoyed on PS5."
PlayStation on how COVID-19 has (and hasn't) changed its launch plans for its next console