Simple keyboard shortcuts such as ctrl+c/v/x, ctrl+z/y, etc. are for average users but more advanced shortcuts like Win+tab (which doesn't matter anymore since Windows 10's multitasking button), Win+shift+right/letf/up/down, ctrl+shift+esc, etc. are geared more
for power users as most people have no idea they can even do commands like that or even be able to remember them. So that's why keyboard shortcuts are iffy in that regard. Some are for enhanced productivity that few know about, and others are for quick jobs that most people know about (especially the keyboard shortcuts that are shown in context menus.mk7wig.by3301.livefilestore.co…
here is a really quickly put together example of an idea of what MS's interactive tiles would be like (a very quick concept, just spent a couple minutes on it). I know that interactive live tiles have been in discussion for Windows 8 for quite a while but their conceptual funcitons have yet to be implemented.
I can clearly see the benefit of them and watched a video presenting their idea a while back and rewatched it today and I would love that kind of functionality. But I don't see the practicality of having interactive buttons on small tiles, such as Notepad shown. The hitbox would be a little too small for touch while still showing the icons without intrusion of a button or function. You can't really fit more than a single secondary function on a small tile in particular, so if modern apps that support both jumplists and
another function such as live information were a small tile, there would be clear complications in this regard showing both a function to display a jumplist button and expand the tile for live information... this could however be ailed by a "..." button instead which could show a pull-down menu which gives more than one option. But again, this would have intrusion issues due to space. I do see your point though.
Also, if they just decide not to support any live interaction on small tiles then the jumplist would still be challenging to access without pinning to the taskbar or right-clicking on the tile.