But there's a vast difference between a tablet and a laptop. On the tablet, multi-tasking aside, your app is designed to run full screen. Your size and position are already pre-determined for you. You can't write an app that just sits in a window up in the corner of your screen. On a laptop, you have windows. Your app can be full screen, no screen or anywhere in-between. It can also be multiple windows. Apple can call them laptop replacements all they like. But this is one area where you can't do an apples-to-apples comparison.
Sorry, I just don't see the point in comparing the two. They're completely different beasts despite what Apple claims. At least in this particular area.
That's why for me, aspect ratios are more important on a tablet than an actual computer. On a real computer, I don't care about the aspect ratio because I can resize and reposition my window to be whatever size and aspect ratio I choose. You can't do that on a tablet.