Okay, I freely admit that the paper looks far too technically dense for me to read through...and make sense of. I lack the biology background to know what is important and what isn't. It looks like a study of part of a rare genetic disorder, so I don't know whether it might apply in some way to ME. It does seem to show that the immune system / mitochondrial links are complex, so it seems reasonable for such a defect to cause the microglial cells to lock into an abnormal state.
I think I'll let the experts ponder the implications, and report on any findings for ME.