That doesn't mean people should not buy gaming consoles because PC offer better performance. It is like saying people should not buy Macs because PCs cost less for the same performance. Or Mac sales are pathetic because they are only 10% of global market. In your post you said PS4 is limited to 720p 30fps.. Looks like the minimum in that list is 900p.
The thing is no one denying that PC offer better performance than consoles. The problem with your argument is that those who buy consoles don't care much about performance (still using 720/1080 tv with low refresh rate). It is about gaming and convenience.
Outside of better performance it is subjective. When I come home after work I grab my PS4 controller and I start playing almost immediately from my couch. For me this is "better" than sitting on my desk playing games on my Mac/PC. I don't know where you are getting your information but the PS4 is not limited to 720p 30fps. Many PS4 games run at 1080p 60fps.
My guess is this feature will require apps be built with ios 8 sdk or we will have black bars top and bottom due to different aspect ratios. This makes me dismiss the idea that the divider can be moved. Maybe this will work for built in apps only.
I remember how hilarious it was when they said it is not a PC because you need a PC to activate an iPad. We kept telling them this can be solved with a software update.. then.. boom!! Apple updated the iOS to allow for PC free activation