I agree, I don’t think there’s anything Sony can do about the cost. Manufacturing costs aren’t going down over time like they used to in the past. That’s why there haven’t been any price cuts this gen.
I think the PS5 Pro was just a doomed concept to begin with. There’s nothing they could do to make games look noticeably better without making the console outrageously expensive or requiring devs to do an unreasonable amount of work to support it.