The faintest star system orbiting our Milky Way may be dominated by dark matter

I think they should look for a black hole(s) at its center,
not for the BH's 'standard' mass, but for the additional/secondary extended mass curves i believe BHs have/create,
that are currently being attributed to hypothesized, ever elusive DM.
My hypothesized secondary mass curve from black holes would be flat/thin but extend extremely/tremendously far out from black holes.
That would be why it's not an obvious artifact of black holes,
but would explain the tight correlation between galactic central black hole sizes and the hypothesized quantity of DM for their respective galaxies.