A few things. I realize and accept that there are many things in medicine that are not verified by strict double blind studies, some of them may in fact be harmful (as some techniques that had been in use are now proven to be), while others may be helpful. They continue to be used due to tradition, the lack of data, and the fact that there might not be an alternative. I do not have issues with that, as long as it is based on some scientific principle. In an ideal world, those techniques would eventually be verified by science. But just because it is in use, does not imply that it works. Many things that a lot of people do are constantly proven to have placebo effects.
If you notice, my critisism of OMM has been very narrow: focused on cranial. Cranial not only has dubious (some say nonexistant) basis in modern anatomy and biology, but it has been shown not to be consistant between practitioners, or helpful in virtually every study done. My problem is not necessarly abandoning all OMM (as I said, I don't like commenting on things I don't do research about), but abandoning things that have been shown not to work. There is a very fundamental difference here - doing things despite a body of scientific evidence against it is not only quackery, but it is a stain on the profession itself. There are several professors at osteopathic medical schools who have been leading the fight against cranial. I am not sure what justification AOA (or whoever decides on the cirriculum) have for its continued teaching and testing, but they need to be repeatedly called out on it.
Regardless of how small an aspect it is, if you go down the route of doing something despite clear evidence to the contrary, you are basically throwing your lot in with the mystics and the homeopaths. There are no two ways about it - the whole profession suffers as a result. You are saying, in essense, that we trust our preconcieved beliefs over the scientific method to advance the cause of medicine. That is dangerous.
I hope that as well, I can't imagine not being a research physician.