I don't doubt any of this, but I still think m$ is more software centric and Sony more hardware.At the time of the PS3, from what I understand Sony was like how the US Goverment was before 9/11. FBI and CIA and all the other agencies didn't share info with each other. This is why when the PS4 was designed they went the post 9/11 US Goverment and everybody got in on the act. So Ken Kutaragi had carte blance on the PS3 because of the PS2. He made all the design decisions, as perviously mentioned the PS4 is made with more than one mind.
It shows in the decisions made for the new systems as well