The phrase "Science is still catching up" is garbage. If the techniques they are using actually work or produce results they were arrived at via some form of the scientific method, even if it is a primitive version of it. We didn't magically get to aspirin. People drank willow bark tea forever before the active ingredients were isolated and the method they got to it's effectiveness is a form of science. Again, if all knowledge of willow bark tea had been wiped out it would have been discovered again because it is a based in reality. If the techniques work, they work because they were found and could be found again.