Sounds as if there are some sensible hogs around there. If the badger really was only passing through they may eventually return.
It would have been best for the hogs to give them a break from feeding at least for a while to ensure that the badger wasn’t still around. Even if a badger couldn’t get into your feeding box it could still pick hogs off on the way to and from the feeding station, so it’s a risk. A badger with a taste for hogs is a bigger risk to the hogs than not having supplementary food for a while. There is some food in the wild now and a hog in the wild is probably more alert than it is at a feeding station, which it might have begun to see as a safe space. Luckily, it sounds as if the hogs are taking their own precautions (which might not always happen).
As said, it’s not something I would recommend, but I really hope that you and the hogs are lucky.