Apologies, but those sound like excuses to yield to the "it's her turn" folks - not difficult problems.No it's not easy to just re-assign the funds because of campaign limit contributions.
The brits don't have a national election at all. They just have a large number of local elections that sum in total add up to a national election.
The French have a national election but this last one wasn't it.
All have much smaller countries geographically with much smaller populations.
Even if one could formulate a national campaign with 3 months til the election you still retain the problem that national campaign is going to be taking on a campaign that has been building for the last 2+ years.
The short length of national elections in those countries have in some part to do with the fact that they have snap elections and no one knows exactly when the election is going to happen except for the chief executive who calls it. Our elections are regularly scheduled and we have no snap elections.
At best those points might be an argument for making the pick through the already-scheduled virtual convention instead of the actual convention. Not my preference, but worth thinking about.