In my head, I always put them in a bucket with Theranos and uBeam, Startups who made product claims which experts in their fields said were not possible.
I guess slick marketing wins over those doubts in some VC circles but you wonder if anyone at the early stage Magic Leap investors is getting asked tough questions about why they approved it, or if they've all just moved on to other roles.
Neither of this is required for a slick demo in well lit room and perhaps on better HW.