Most bell Fibe is not direct fiber to the house (though that is available in toronto and some other areas), and running on the same copper into the house, it does allow for much faster speeds. (the equipment closer to the house has been upgraded, so its really only that last mile its doing across the phonelines.
Note that many (most???) modern ADSL implementations are using Fibre to the VRAD "Street Cabinet", which contain FO-to-Hard Copper Converters. So Hard Copper Pair distance is reduced to under 1/4 to perhaps 1/2-mile.