Yeah, the series s was a great decision in the short term, but was always going to create a lot of problems as the current generation progressed. Because while it kept consoles on shelves during the initial launch and chip shortage, and pulled in people who would ordinarily balk at the cost, the promise of next Gen support for the series s was always going to come back and bite Microsoft in the ass when more games started to push the consoles limits.
In this regard, Sony was way smarter in just extending the ps4 lifespan since developers can just drop it any time without the existing user base feeling like the got scammed since the ps4 never had promises of running concurrent to the ps5 like the series s does.