During The Lego Movie we learn that the whole LEGO world is actually a universe existing within ours, or to be precise, in the basement of a real human family and that the whole story is actually played out by a little boy named Finn and a way for him to cope with the conflict of his strict and fantasy-inhibiting father. And indeed this is again strengthened when we see that the actions as performed by his father when supposedly "repairing the mess" that Finn created are directly represented by Lord Business' micromanagers performing them inside the in-universe viewpoint of the other LEGO figures.
Upto this point that is a reasonable and obvious representation to me and even Emmet's direct witness of the universe behind his, our real world, is nothing but him seeing the strips behind the course of his own universe, however he managed to overcome this boundary between dimensions. But the single-most action that completely shatters this whole viewpoint is the incident, when Emmet manages to move completely on his own, thus directly interfering with our universe on his own and it seems to me that there is no way to bring this in congruence to our own physical reality, not even when accepting the LEGO world and its course as an emanation of Finn's fantasy, since Finn didn't do anything at all.
So what are we to make of this incident? Does it have any deeper implications for the depicted realities? Does this establish the LEGO figures as existent and sentient within our physical reality outside of our mere fantasy? Does it have any further signficance for the meaning of the whole story and actually extend the rather simple and obvious kid's fantasy interpretation of the story in a much more elaborate way I have missed? Or is this just to be brushed off as nothing of relevance?