Agreed. However, the time it takes to learn properly how to construct experiments in a particular field, and the time it takes to acquire the experience and knowledge necessary to interpret the outcomes alongside practitioners in that field, is lengthy enough to require making that field one's full-time occupation. Nearly every knowledge field uses the same hypothetico-deductive framework and methods of differential empiricism. But having mastered it in, say, medicine doesn't immediately qualify a person to construct valid experiments in engineering. Experiment design is predicated on second-nature knowledge of the detailed mechanisms that apply within the field. Where the experiment means to test a happenstance event, it must also base itself on experience of how the events normally play out among its human, natural, and constructed elements.
Jones isn't a chemist or an engineer. He has never been involved in designing or constructing a building, much less any of the special techniques employed in the WTC towers. He is not a field investigator. Prior to his involvement in 9/11 he had zero experience in the relevant sciences. As I said, I had the opportunity to observe Jones before he became nationally known. Watching him attempt to empirically validate his crackpot claims was just ... sad.