Actually I've heard this works for other regions too. If you set it to any language currently supported by Narrator, I'd guess, you can set it to your region and it should work fine as well.
Though a little heavy-handed, your frustration is not unjustified.
To everyone in this topic asking/wondering about Narrator, I've heard that more languages are coming, though no word as to what ones.
I've also asked for a specific list but I've been told there isn't one. Hopefully this is rectified in the future.
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