"By immediately I mean we send it to k-ID who said that's what they do."
People have already validated this fyi. When k-ID was first added you could send a bogus age result to discord from your local device, which probably still works. There's no evidence your facial scans leave the device.
"By that I mean they partnered with Persona to do the actual verification."
Which isn't true, it was a UK-only experiment being run for a small subset of users, which has now been discontinued.
I get people are outraged, but this is sensationalism at best.