When researching whether Apple or Google can turn off the system, I found an advisory document issued last Thursday (Jan 7, 2021) from the FCC to remind all participants of obligations to comply with the EAS rules.
Details here:
https://den.social/l/politics/0Y7CWNiXVR/eas-system-and-legal-requirements-of-participants/
After the murder of his wife and pets, his twitter account was following multiple C_A, leftists, child protective services related accounts, etc. Now it follows only 6 accounts.