They refused to answer questions, discuss the critiques or -- alternatively -- retract the report. In my opinion this violates academic ethics. It is unprofessional, as THH says.
Kinda like Marwan, McKubre, Tanzella, Hagelstein, Miles, Swartz, Storms, Iwamura, Mosier-Boss, and Forsley right?
Nope, it is not even a little like them. They answered you. You do not like their answer. You don't agree. But they are not obligated to agree with you. As far as I know, no one agrees with you.
They are not obligated to answer your answer, in an endless loop. One response is enough.