You might be able to make the same argument for opening a thread for many other languages in the 'other languages' sub, and allowing for two (or more) threads per language would only clutter that sub in a confusing way. I think it is unlikely you will be banned for opening a single duplicate thread, however i think there is a good chance it would get removed.
I don't think the "clutter" is so bad:
Other languages/locations still shows topics that were last active in April. The entire board isn't very active, and the main threads are pinned already.
If you potentially have two (or more) threads per language, you are potentially doubling the number of threads (or worse). This might cause a non-stickied thread to go from being on the 1st page to now being on the 3rd page.