Thanks for checking the changeset. Yeah this is a bit of an odd one and I wasn't sure if I should change the highway tag. See also
https://www.openstreetmap.org/note/3574754 and https://www.mapillary.com/app/?pKey=1460163174375779

It *looks* like a footway, it *feels* like a footway and it functions as a footway 99.9% of the time (that is, the entrance to the park from the Dumbiedykes area). It's just that some vehicles are allowed on drive on it, presumably to access the lodge (though I've never seen anyone drive there).

It's not someone's private driveway that happens to be open to pedestrians.

But I'll defer to your experience if you disagree!