It appears that Mark Svancarek (CELA) via UA-discuss <marksv@microsoft.com> said:

-=-=-=-=-=- -=-=-=-=-=- Here’s what SSAC had to say about emoji domain names (they are opposed). SAC095 SSAC Advisory on the Use of Emoji in Domain Names 25 May 2017 (icann.org)<https://itp.cdn.icann.org/en/files/security-and-stability-advisory-committee...>

We sure are. Also remember that ICANN has a long standing policy to folow IETF standards. The IETF put a lot of work into deciding what characters are and are not allowed in UTF-8 domain names in the IDNA2003 and IDNA2008 documents. Emoji are definitely not allowed. I think I can say with great confidence that if someone showed up in the IETF and asked to update the IDNA rules to allow emoji, the response would be a deep sigh followed by "nope." R's, John