Yeah, it's probably a good idea in the grand scheme of things to get their patches back upstream. But is it worth reporting on? Worth posting/upvoting on social media? It doesn't actually mean anything does it?
I realize that GCC's policies were actually important for getting Next to release their Objective C code in the 90's, but it seems like times have changed. Companies have learned that keeping their code a secret actually isn't a huge competitive advantage whereas releasing it has a lot of real benefits (such as reduced maintenance cost). It's always better to have people doing the right thing because it's in their interests rather than because you forced them to.
OTOH the main chip was an IBM product so it might have been big blue that we should look to.
Heck, even if the code is just used as a reference by people saying "gee, I wonder how Sony solved this problem" it's still very useful.