Why is the view dark and blurry
There is a very readable review from a man who seems to know what the optical wizardry in the Magic Leap is about (I know I don't).
In short he says that what Magic Leap started with was an unreasonable amount of optimism as to what two conflicting physical principles will allow them to do. From initially planned six or so planes of projection they had to cut down to two in order to bring the two respective qualities of the projection to bearable levels, which fact brought severe limits to how good the depth of field of the projection can be (result: not good, really).