Ohhh no! Just when I thought I got the answer. Just skimmed it and I draw some hope from the fact that the author uses the unconfirmed Unruh effect and wave function collapse, which is as far as I know not a thing because it is not unitary, to explain the double slit experiment. So maybe it is the author who is confused and not the others he is complaining about and I won't have to change my mind once again but I will have to read it way more carefully before drawing any conclusions.