Welcome
@Friendswithme. It is good we have a range of views here and discuss things through.
Though the research is limited it is generally said that only around 6% recover from ME. It is most frustrating that no one attempts to examine why these people recover when the majority don’t. I have no objection to such as Garner believing recovery is possible, but if he is going to advocate people undertake specific treatments he should be basing it on good science not bad research and limited anecdotes. The research into exercise and brain retraining is very poor, it if anything demonstrates these approaches are ineffective other than short term uplift on subjective measures and there is significant data on people being made worse by these approaches.
Success stories may give hints for serious research, but they are also fodder for cultists and snake oil peddlers. If suggesting an approach that may possibly help a few but will definitely harm a lot, its advocates should first establish a reliable way of deciding who will fall into which category.
Some twenty five years ago, and five years into my ME, I believed I had recovered, but after several years I had a bad dose of presumed seasonal flue and relapsed to a level more severe than before. I had when improving tried a range of things, but none of those things have any subsequent effect after my relapse. If I had presented any of these things as a cure for when I was in remission I quite rightly should be subject to critical analysis especially as I can now confirm they produce no long term improvement for me.
Garner has said confusing and possible contradictory things, but he is also writing articles, seeking out media experiences, actively campaigning against the current NICE guidelines based on much more rigorous science than his pronouncements and presumably fighting to block any withdrawal or rewrite of the flawed Cochrane exercise review. Through out he uses his own experience to justify his position, so quite rightly this should be subject to critical analysis.