What surprises me about the OMI approach, especia lly from a physician who used to be a HIV doctor, is the focus on herpes titres in ME/CFS. As Dr Chia pointed out at the conference in London earlier this year, before the discovery of HIV lots of people were focusing on herpes virus titres in AIDS patients and speculating about the possible causative role of these viruses but all this became instantly irrelevant once the real cause of AIDS was discovered. Speaking as someone with ME/CFS and pretty much chronic shingles, it seems pretty clear to me that these reactivations are a consequence of whatever the hell is going on with the redox state and the immune system in ME/CFS, not the cause. Valcyte, when it works in a subset of patients, probably works through its immunomodulatory mechanisms rather than its antiviral effect. To my mind, the herpes virus approach is a dead end.
I think you need to look at it from a different perspective.

These doctors are using AVs because viral infections exist, not because they necessarily believe those infections are causative.
It's pretty silly to refuse to treat a secondary condition because it's not the cause of the illness, especially if the secondary condition may be at the root of some of the worst symptoms. HIV patients don't die directly from low CD4+ cell numbers, they die from the secondary infections their bodies can't handle because of immune deficiency. Should those secondary infections not be treated because they're not the cause of AIDS?
Former HIV/AIDS doctors who now treat ME (Kaufman, Klimas and possibly Kogelnik and Rey) know from experience with HIV that some of the worst symptoms in an immune deficient patient come from the secondary infections. That's why all of them use AVs when they detect viral infections, just as they did with AIDS patients back in the pre-ARV days.
Before ARVs were available, AIDS doctors were using antivirals extensively to try to reduce symptoms and slow progression of the illness. That's where we are with ME right now. We don't know the cause, but we do know that many patients have serious secondary infections that need to be treated.
FYI, neither Dr Klimas nor Dr Rey ever suggested to me that herpesviruses were the cause of ME. In fact, they've been very clear they don't know the cause -- nobody does. I don't believe Drs Kaufman, Kogelnik, Klimas, or Rey ever believed herpesviruses are the root cause of ME. Anyone who claims they do should check their facts.