There has simply never been a product or feature in the search world (online or offline) where Microsoft got it, everything they have that works is when they dropped their idea and just copied whatever the other guys were doing.

For me they just don't get search, like, the very idea of search or not just searching, it's understanding what you're searching for. And when you bring that down to the start menu, it become super clear and obvious that they're out of their league.