Not necessarily. They could just build another pavilion for any country if they wanted to. It's not like they have to ask the Colombian government's permission and none of the other pavilions are funded or approved by the governments of those countries.
true but they still require sponsors and reps from said country, they have needed to change the model up a long time now but its just not going to happen I guess. I think the remaining plots left will more or less be used for additions or attractions like they did with ratatouille, and not a new pavilion sadly. would be nice though. Been over 30 years.
Do they require sponsors, though? It would be nice to get them and I'm sure they could at least attract some third party to operate a restaurant, but I think the extent of the sponsorship at other pavilions is mostly retail and dining outlets at this point, if that. As for reps, they just need to hire more people from Colombia through the Disney International Program. I would be surprised if they aren't already hiring at least some people from there each year through the program.
I would argue that for the demographic of the guest that Disney is trying to attract (affluence), unlimited PTO is the norm. So no, I don't think that the amount of vacation time is part of the consideration.
