Chiaryn,
So, I did a little more research on my own, and discovered that the top level domains I had found are not listed in the public suffix list at publicsuffix.org. So at least I now know that this issue is perhaps related to that fact. But still, I think it makes sense for you to know in your database of top level domains that these should be included since right now it does cause your domain authority ranks for domains registered in that form to be incorrect. And it might be that you folks have the right connections to have the the public suffix list updated if you are a consumer of that list for your services.
Michael.