Idk exactly, reports started falling while EU was still in maintenance. Since some of the people who worked on those languages can't get them working at all, I'm confident they've tried all they could already.

If replacing one of the "official" values is the only solution in the end, that wont do any good either.
But if it works, why not go for it
but not sure how custom font can be supported with this.
And that will make addon testing a bit more of a hell too.

Overall a crappy decision. again.