Where do you get off telling renowned scientists that they ought to know better? According to you, who makes offensive and unfounded accusations against researchers who are working hard to figure the disease out when they could go and get paid loads more easily by taking their skills and reputations and looking into a more trendy disease where funding comes easy. It's really stupid to bite the hand that feeds you, which makes me wonder what your motive is here.
To answer your point above, they don't say that it is "a small percent of people who are acutely infected with Lyme disease go on to develop chronic symptoms. The sentence includes EBV and HHV6. Taking the three together, they are absolutely right, it is a small percent. It it not 1 in 5 who develop chronic symptoms from EBV, HHV6 or Lyme. 1 in 5 is also small compared to 4 in 5, so they wouldn't be wrong even by your misconstrued version, but that isn't what they said so it is irrelevant.
Why do they mention EBV, HHV6 and Lyme? Well, I suspect because they are common infections that cause similar symptoms to ME and which have each been linked with causing ME, or ME-like disease. I don't think it is meant as an exhaustive list, but rather than attacking them, you could ask them why they picked these three, in a respectful way.
Pretty much everyone here thinks this research is top quality, if you don't like it, that's fine, but either engage respectfully or go and do something else. The last thing I want to see is you create a situation where these researchers decide not to engage with us because of a lack of basis courtesy. They don't have to do this research for us, and they certainly don't have to answer our questions and let us feedback into their work by engaging with us. They are doing that for our benefit, but you seem to be trying to ruin that.