Mojo
Mostly harmless
Your whole approach is to compare the likelihood of you existing under OOFLam (where "you" is just the physical body) to the likelihood of you existing under some model where "you" is an immaterial soul inhabiting or connecting to a physical body.
Not quite: that's what he claims to be doing now, but his approach initially was to define H as what he termed "the scientific model", which is a particular scenario under which he is mortal, and ~H as immortality. His objection to H was that his specific existence is infinitely unlikely under it. He's then done a sort of bait-and-switch and substituted "OOFLam" for "the scientific model", while maintaining essentially the same argument against it, even though "OOFLam" doesn't necessarily imply that his existence is unlikely. He still seems to be relying on the underlying false dilemma, as his approach still seems to be to try to cast doubt upon H rather than to provide evidence to support his preferred hypothesis (or even to consistently define it).