I like where this theory is going.  I think it deserves more discussion:

Today, Ellis and Rothman introduce a significant new type of block universe. They say the character of the block changes dramatically when quantum mechanics is thrown into the mix. All of a sudden, the past and the future take on entirely different characteristics. The future is dominated by the weird laws of quantum mechanics in which objects can exist in two places at the same time and particles can be so deeply linked that they share the same existence. By contrast, the past is dominated by the unflinching certainty of classical mechanics.

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They point out, for example, that this crystallization process doesn't take place entirely in the present. In quantum mechanics the past can sometimes be delayed, for example in delayed choice experiments. This means the structure of the transition from future to past is more complex than a cursory thought might suggest.   

The part that seems most significant is the way it ties quantum dynamics to classical or relativistic mechanics.  The uncertainty that lies in the future just can't be treated like a classical model, except in very narrow cases where all of the parameters are carefully controlled.  In the large majority of cases, small quantum effects trigger larger effects that go on to affect the final outcome in unpredictable ways.