Yes, I trust that they knw what they are doing since they are "our" researchers. Maybe their fancy Harvard MRI will pick up something that other machines can't.
Polybio seem to be very into the machine they intend to use, and are very knowledgeable about ME.
I don't equate them with other more random researchers who could be more poorly informed.
You can send them an email at their web site and just ask them.