Heck, Unicode is a mess already. But that's mostly because (a) language and scripts are messy, and (b) the original aim was to unify and encompass all existing character sets, and some of those were messy as well.
While there was considerable uproar over Emoji and there still often is over yet another fifteen symbols that everyone thinks no one would ever need or use, the bulk of the Unicode character set is still scripts for human languages. And some of those are only relevant for a very small minority, say, archaeologists. But that's fine. There's enough space, we're nowhere near to running out and Unicode enabled all sorts of cool things in computing that simply were not possible before or only with awful hacks and workarounds.
While there was considerable uproar over Emoji and there still often is over yet another fifteen symbols that everyone thinks no one would ever need or use, the bulk of the Unicode character set is still scripts for human languages. And some of those are only relevant for a very small minority, say, archaeologists. But that's fine. There's enough space, we're nowhere near to running out and Unicode enabled all sorts of cool things in computing that simply were not possible before or only with awful hacks and workarounds.