Why was this question put on hold as primarily opinion-based?
This question seems to feature a recent phenomenon that clearly falls under language, even English language and usage; it is interesting, clear, and important. It is also tagged correctly.
I wonder what is opinion-based about sorting emojis in a dictionary. This is not rhetorical; I wonder in earnest. In comments, one of the close-voters remarks:
I just don't think this is about English Language and Usage- OED’’s decision notwithstanding. And even if it was, you’d only get opinions on what the OED might do unless 1. There’s someone here that represents the OED or 2. The OED has some sort of published paradigm that we could quote- but then that would be GR.
I expect there to be a clear, definitive answer. It is another thing entirely that we do not know how to answer it. Anyway, I don't. Is that a reason for closing it? It is apparently anticipated by the close-voters that no one here knows the answer. Why? And, if this is general reference, what isn't?