This is IE we're talking about here, don't think they put quite that much thought into it.
I think it flipped like a brolly in a once a century strong gust and the area is pretty exposed anyway, moreso now that the carriage shed is gone.
Think it's hoping beyond hope that an (improved) replica will be installed in its place, more like bus shelters like everywhere else.
Looking at other pics, the old goods store doesn't look too clever, with all those missing (and presumably loose) slates.