I think all these points are irrelevant.
I think I should have made clear that often times, I see some impressed by the PS4's sales. One can see this going through http://gamrconnect.vgchartz.com/thread.php?id=239744.
For whatever reason however, no potential caveats are ever brought up. I have yet to see any mention of PS4 and PS4 Pro sales figures being lumped in together for example.