OK, let's bring in another angle here.
What about the Canadian operators who conduct no alternate IFR commercial flights. They are regularly landing with 11 - 1200kgs in a 320 with no option to go to another airport.....................
Back on this thread - How much fuel you have at taxi out can be a variable feast. It is easy to specify a more remote alternate knowing you have somewhere closer - that get's you round the fuel policy very well.