It would mean, dark matter is in fact super-symmetric effect of black holes inside of galaxies. Without presence of central black holes the galaxies cannot contain material particles around it, because of no evaporation. This idea could have some meaning in holographic theory of Universe, too. This could explain both absence of dark matter outside, both black holes outside of small galaxies.
has found another evidence of dark matter presence near small galaxies. This study demonstrated, that the low-velocities of stars observed around dwarf galaxies are infact compatible with galaxy formation in dark-matter haloes. Stellar orbits in the outer regions of the resulting elliptical are very elongated, which can explain the observed velocities even in the presence of large amounts of dark matter.