This is a sociological and institutional problem, not a problem with IPT itself. If a simple innovation can help many different diseases, we should not ignore or shun it. We should welcome it. If it looks too good to be true, it probably is. This is a common negative thought.
People can only work on small bite-sized projects.
True, we are taught more and more to specialize, to live more and more in our personal microcosms. True, the IPT picture is big, and until now has never been presented in its correct scale. But although the IPT picture is big, it is also simple and easy to understand. Like the new millennium, it is a big picture that everyone can relate to and respond to in their own personal way, focusing on it in small bites. IPT is too new and different for people to easily accept and adopt.