The interesting bit about this to me, if this is happening in our immediate neighborhood, is if it’s an indication that it’s actually a commonplace phenomenon a

The interesting bit about this to me, if this is happening in our immediate neighborhood, is if it’s an indication that it’s actually a commonplace phenomenon and further - an explanation of our missing matter to bind galaxies. A primordial black hole is not visible but it would interact gravitationally, potentially with multiple of them clustering up in groups. Dark matter work this way seemingly including clustering. Some galaxies seem to be made up by a ton of the stuff, others by barely anything. Could that be due to random chance; i.e. primordial black holes distributed unevenly since the cosmic inflation era, much like the non-uniform distribution of matter at large?