Interesting. You would expect the matter that lies outside our reference frame to have an influence on those galaxies, clusters and superclusters out so far. For them, we are near the observable edge and those galaxies beyond where we can detect are quiet visible. It's all relative
Their horizon distance is quite different than ours, in its position relative to themselves.
All we're seeing is the "anomalous" movement of matter relative to our horizon (and within it) being influenced by matter we can't see in that part of the Universe beyond our horizon. A little bit of deductive reasoning would bear that out. It should've been pretty obvious theoretically, even if it was hard to detect experimentally.
