MD federal employees: Second OPM “test” e-mail — How are people responding?

OPM sent out a second test e-mail directly to all federal employees this afternoon (Sunday), following the first one on Thursday night. Both were after/outside normal hours, and both demand a reply.

I assume the intention is so that OPM/OMB management (PAS/PA) can contact & instruct all federal employee directly and simultaneously, without risk of being “filtered” by career civil service staff.

How are MD rank-and-file federal employees responding? These messages look like spam or phishing messages, but even if not, why the urgency in requiring employees to respond? Will failure to respond be grounds for discipline? Is non-career OPM leadership planning to instruct federal employees to do something normally not done or permitted?

Does anyone feel uneasy about this?

(I tried posting this twice on r/FedNews, but the mods took it down immediately both times, so posting here. Feel free to re-post/cross-post, etc….)