Look, the world won’t end if sometimes those symbols cannot be displayed. We do have two or three letter abbreviations for currencies. But in the long it should be our goal to create systems that can deal with new symbols easily and that have the assumptions that symbols will change and new ones will be introduced built into them. Because that’s how it is. Actually.
It seems to me here that in this case it’s very much the web that’s broken, not the new symbol.