I completely agree. Though pgp emails usually have to be set up. At least when using element nothing has to be set up and it is enabled by default. But this doesnt change the point.
As an org self hosting a matrix server would be an option. But the issue would still remain. So its a tradof
I would guess it rather refers to images. But it doesn't matter if it is too expensive. Ai is the only thing that can do the stuff they want.