[zhwang]

If this is correct, then this matters much, much more than the sensationalism surrounding browsers on WoA being unable to run as desktop apps.

The entire focus of WoA is pretty much Metro-style apps, with Office on the desktop as something on the aside, so why would it matter that another browser can't place itself into the desktop? But if other browsers are actually going to be disadvantaged backend-wise, then that's something to worry about.