Mond doesn't need that to explain early galaxies. When the matter is sparse gravitational contributions are weak and thus overwhelmingly in the O(1/r) regime a

Mond doesn't need that to explain early galaxies. When the matter is sparse gravitational contributions are weak and thus overwhelmingly in the O(1/r) regime and not the O(1/r^2) -- this makes gravity "seem stronger", and so stuff clumps together faster.