Still showing 100% uptime! https://status.1password.com/uptime
seems to me a plausible reason why it might be silly
An alternative theory is that maybe 1Password defines unavailability in some nuanced way given their local-cache client model as well as this allegedly only affecting sign-in, with presumably anyone with a live session at 11:35 being able to use the rest of their API
Also, https://status.1password.com/incidents/3cqc0kx5qdzz is the actual thing, since clicking "history" takes some horrific amount of time to load, as a nod to the aforementioned "Atlassian Excellence in Execution"