Bluetooth and bluetooth audio are very different things. Bluetooth audio support seem rather weak and users seem to be using usb audio blootooth dongles created for pa4 and ps5 such as https://www.amazon.com/dp/B08MF5S5YX rather than a generic bluetooth transciever.
What little freebsd support for bluetooth audio there is seem to rely on specific audio backend software and since I’m assuming ps5 has surround sound, atmos and whatnot they probably threw that out of the window early on during development.
With that said sony has done plenty of graphical stuff on what I assume is their custom display driver suchas 3d, vrr, hdr. So them having plenty of custom modules on top of freebsd can’t really be an excuse so I’d just cook it down to sony priorities.
Also, fuck developing for bluetooth. Hate that janky specification…
Even my super basic washer has a delayed start timer that solves that issue without wifi modules or whatever. Then again insurance doesn’t cover a water leak or oven fire if I run stuff when I’m away so I never do that.