We’re basically outsourcing email judgment to AI, then trying to compensate by strengthening SPF/DKIM. That feels like hardening the locks while handing out more master keys.

I think there's several things going on at once in that space. This is just their vocalisation of it because it suits them.

The thing is Fastmail can't speak with absolute authority about email because Fastmail is not email. It's subordinate to it.