Hilariously, the question was closed as "Too Broad" after someone had identified an existing question that was functionally identical to it (and which has to date never attracted even a single close vote).
I'm gonna hazard a guess that this was simple carelessness, a case of voters reading the question as a request for an exhaustive list of exceptions rather than an explanation of the differences and practical guidelines for use.
I've re-closed it as a duplicate.
As for what to do in these situations... Calling attention to them is of primary importance:
- Leave a comment disputing the validity of the close reason(s) chosen by the voters
- Edit the post to clarify any ambiguities that might be leading voters astray.
- If the post is already closed, vote to reopen (this also places the post into /review, where others can read your comment and voice their support by also voting to reopen).
- Post here on meta (as you've done).