buh, what is exactly the point of this post?
showing some FVWM desktop and asking if we would use something like that or hack around it?
in case he wants to make a point by saying - linux looks like this and people use it! yeah, but they also hacked around it and made other things like E, Gnome, KDE, XFCE,... which are complete desktop environments (while FVWM is only a window manager).
anyway, this question has no point, because AOS4 will _not_ come with such an interface, it will include some enhanced 3.9 like GUI. and yeah, some parts will not be liked by certain people and then hacks will appear. WorkBench would look like it looks today without all those hacks...