How can you not expect UC to reach out to the 1000s of languages out there, when their entire and sole reason to exist is to allow computers to work with all of those languages?
There's no point in taking on a job and then declaring it to be too difficult.
UC's job is to coordinate. There are plenty initiatives for all kind of languages. I havn't contributed, but I followed the mediaeval unicode initiative a bit. The barriers for contributing seem very low. The Wikipedia-analogy elsewhere here describes the situation very well. Complaing Unicode sucks for language X and the consortium is to blame is like complain that the x language Wikipedia sucks and wikimedia is to blame.
There's no point in taking on a job and then declaring it to be too difficult.