I trust Apple's implementation more than I trust myself accidentally leaving my disk unlocked in public. And I do trust myself not to leave my disk unlocked in public.
(I know this is a digression from the topic but we're nicely tucked away at the bottom of the comments)
I don't use laptops anymore. Just host machines for VMs. And I always shut them all down, whenever I leave the building. I have a commercial UPS, with a deadman circuit. So I just cabled that line with the CAT6, and there are motorcycle-style kill switches in key places (desk, bathroom, kitchen and bed).
I don't do anything iffier than many who write using their meatspace identity. But for many years, I wanted to keep that segregated from my professional life. That doesn't matter so much now, but it's Mirimir who I am. So hey.
I don't do anything cool, at least as of right now, but I still check my locks and I'm happy to impart my knowledge like this. Privacy is a human right! I hope journalists, Uighurs, and whoever else can find their way to decent security information because of mirimir's efforts.