You bet your ear it is. It was an extension of some proprietary nonsense that was already on Japanese cellphones, brought into Unicode for compatibility purposes, and then more than a decade later the rest of the world discovered it and it blew way out of control.
I won't be happy until conlangs like Klingon and Elvish finally get their due out in the Astral Plane. The original rejection before the Astral Plane opened up makes less sense in the age of filling the Astral Plane with modern heiroglyphics. 👀✨🤳👏🐱🚀