"We believe in generations" and they've had an official cross-gen policy since launch.
Jim Ryan never said that they weren't going to make crossgen games. In fact, in the 'we believe in generations' what he explained was the opposite.
He explained there why they were going to keep supporting PS4 for many years after the PS5 launch.
The 'we believe in generations' bit was part of a sentence where he said that wanted to see the PS5 games taking advantage of the new stuff that the next gen provided (haptic feedback, adaptative triggers, etc):
https://www.gamesindustry.biz/sonys-jim-ryan-its-time-to-give-fans-something-that-can-only-be-enjoyed-on-playstation-5#:~:text="We have always said that,the most of those features
"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."
"We haven't heard any pushback from the PlayStation community regarding our PC plans".
He never said that.
Just the other day we were talking about Jim saying PC "2-3 yrs out" in that Japanese interview yet since half of their new games are more or less GAAS day and date on PC the point is moot. It's called finessing, and we already unfortunately got one motherfucker on the other side aka Xbox who has finessed the brand into oblivion - Phil - finesse king - Spencer.
What he really said in the Japanese interview is this:
Regarding Sony games announced for PC, the only one we know will be released day one on PC is Marathon because we already know Bungie games will continue being released day one on Xbox and PC.
The other Sony games announced for PS5 and PC didn't receive release date for any platform. As a reference, Helldivers 1 was released on PC around half a year after being released in PS3, PS4 and Vita, back in 2015. And all the other Sony games released in PC until now have been released some time -often years- after its original release in PS. And the already released GaaS from PS Studios are only in PS.