This is ridiculous. Everyone has had almost a month to make a team. Anyone can literally just go on showdown and quickly make a half decent team in like fifteen minutes tops and share it. Something as simple as this does not deserve to have everyone waiting for weeks after the due date passed to get their teams. If someone legit wasn't capable of making a team after given a month, I doubt they'll be ready if given more time. At least give people the teams that you have ready now, though it would be nice if you also notified the people whose teams aren't ready yet.
I don't know how it's possible, but apparently people are too lazy to even get on a video game and quickly make a team on it for a community project. Sad!