Those are definitely plausible angles. I would add that another possibility is that ITGOT is suffering from some sort of mental illness, and that this was a planned, elaborate and one-sided act to gain lots of attention and $.

I agree with what you said about the detail, and that it is reasonable to expect more. He's clearly not adverse to going into detail, as he goes into great detail with explaining the meaning of his and James's messages. James supposedly says many things which are emotionally charged. He should, as a result, be more likely to remember it. But perhaps he is trying to forget about it, and doesn't want to relive it by repeating it... because it was painful and scary to hear.