The thing is that for HoloLens and VR sets we did have people showing it as best they could in a camera and for vr projecting into a monitor. Magic leap held it all secret and we'd be told how magical it was.
>>Holoma+ms
It was hyped for a long time before that. That they released the underwhelming demo is just them failing. But they kept what it actually displayed confidential for a long time.