The 2013 CBD diagnosis described in TSP is critical imo.
Either it occurred in 2013, as described in TSP or it occurred in 2015 after the walk was completed. If the former, then surely RW would have stated in her rebuttal letter - " I categorically deny the allegations in the Observer that I misrepresented Moth's CBD diagnosis and disease progression in TSP. The original diagnosis and neurologist's letter was mislaid due to the harrowing and disruptive events which occurred at that time as described in TSP. However, I have applied to the NHS to send me a copy of the letter, which I will upload onto my website, when I receive it."
However, she doesn't and in the 4 weeks since the Observer article was published, no such letter has been produced to back up the events described in TSP.
At this point, disappointed readers are bound to draw their own conclusions....