If Google Glass had instead launched WITHOUT the live streaming and all the features that violate people's privacy, it may still be around, no matter how bad it looked.
What excited people about Google Glass was NOT being able to record others without them knowing, but how it could potentially provide value by augmenting reality.
Likewise, I'm sure Magic Leap should be "ready" at this point. If they are not, it means they still haven't found their MVP, which is a bad sign. I have never seen a piece of technology that succeeded by launching 100% refined. All successful technology launch as something that's not quite perfect but even with the limited performance provides value to small set of audience. And this includes even Apple.