I can see it being a situation where the usual plan would be for people to travel out of state to a different relative's place, and that got cancelled because out of state, so they said something like "Since we can't go to their house, can we come to yours, since you're local to all of us?" I don't think that would be particularly out of line, especially if she has the most suitable house for a big gathering.

Still 100% correct to say no, we are not having a gathering at all this year, of course.