I feel like you missed the whole point of the Metro design language. It’s minimalist. It shows what it needs to show and nothing more. I don’t feel like writing an essay on the subject so I’ll just go through your points.
1) Static tiles are fine. What they point of having them update and waste resources just for the sake of it doing extra stuff. It’s not a widget, it’s an icon. I don’t want my IE tile having random notifications for the sake of having them.
2) I guess this would be handy. Things like pictures tile could be made smaller for people who don’t like it there I guess. Although if you really didn’t like it, why not just unpin it in the first place? I don’t see a need to make tiles bigger except for showing more info, which again comes back the fact that they are not widgets.
3) So Tiles are wasting space, but apparently you want more space to waste as well? I get that the slight offset of the start screen seems a little unbalanced for some, but after a little while you don’t even notice it. It is also a fitting visual cue that there is more to explore to the right (which isn’t obvious to everyone).
4) Again, they are not widgets. It sounds more and more like what you are really after is an android phone with a custom ROM.
5) Oh god no, why do you need all the details of an app? I don’t need to see that Whatsapp is xMB and was installed on a meaningless date. It’s an app list, it’s there to launch the apps you don’t use that often. It’s not meant to be exciting, it’s meant to be functional, like a hammer. You don’t use it to look like a suave business man, you use it to get a job done.
It seems from reading your post that you want complexity for the sake of complexity. Metro stands for the exact opposite of that. You get in, get the job done, and get out to continue living your life.
