I thought this was settled some time ago, the wheels of bureaucracy grind exceedingly slow
Primarily MS were going to remove IE 'completely' from EU versions, Windows 7 [type Home Premium, etc.] (E) indicating no IE. This they found was too difficult because IE is integrated into the OS and its removal would be almost impossible without starting from the ground up (replacing those things displayed by IE integration).
So they came up with the polling idea for a workaround, which I though had already been agreed, other than the Bun Fight of which browsers would be included in the Poll list and in what order