It’s not easy to comprehend, but I will try to be somewhat leveled here. As I always said, this is not a question of physics or science, but of pure psychology. So to cool down I’ll try to think that they actually feel the same contempt for the personality Rossi and other people that they don’t understand represents, as I feel for them.
For them Rossi represents their highest fears since he threatens their world view, built on years of intense study of the ancient books of physics. They actually use ”ancient” as an argument in some weird way. And since something that ancient can’t possible be wrong in their mind their only conclusion is that Rossi commits fraud. However they don’t dare to connect the dots, that this also means accusations against Rossis employer and owner of the technology Industrial Heat. I believe this is to complicated, so they just leave it.
Being physicists it is also hard to believe how easy it seams for them to resort to circular arguments. In their world view there seams to be no way that what has been thoroughly measured and described in the report can be true, so they use those measurements as a premise and deduce their fraud conclusion, without any single indication to back it up.
Makes you go hmmm.