Actually even the German Prince-Electors showed some form of proto-nationalism. They preferred the native Habsburg dynasty over the foreign house of Valois. It wasn't the first time, the house of Luxembourg, very friendly towards France, was also elected in favour of a member of the Royal House of France.
@Tanc49: the Burgundian Netherlands (and Franche Comté) was the remnant of the Valois-Burgundy inheritance, the Royal Marriage Maximilian of Austria and Mary of Burgundy was even considered a 'love match'. And the house of Habsburg did absorb a lot of the Burgundian inheritance, most prominently the Order of the Golden Fleece.
Anyway I'm sceptical Francis would have been elected, he was perfect though to leverage the Habsburgs into paying more bribes.