To be fair Guh said "many" not a majority, not a large percentage, etc. Even 1-2% is on the order of 1000-2000 docs. If we take the higher estimate of the docs that use OMT regularly (5%), its on the order of 4500.
It is significantly skewed based on specialty. I mean the only people really doing OMT regularly are the OMM/NMM specialties (I actually believe they are ACGME specialties now, since they have a residency review committee on the ACGME), PM&R docs (I actually know plenty of DOs and even some MDs in this field that use it as first-line therapy), and a percentage of FM docs (I've noticed this is very regionally based, any family practice in my area with >2 DOs has OMT clinic hours, but in other areas it's hard to find).
Anyway, my point is that its not an outrageous concept that you could both be correct, as long as you lay off the extremes. The DO population is sufficiently diverse, and many DOs do use OMT, that doesn't make their opinion less important. And as for the large majority of DOs that would never dream of using it, that really doesn't make them "MD wannabes". They are DO physicians as much as the rest, and as physicians they are capable of discerning what method of treatment they should utilize at a given time without med students (yeah all 3 of us) saying what is and isn't acceptable.
I'm reminded of a question I had in OPP last year from my professor who clearly uses it on a regular basis. The question described an emergent clinical scenario with a number of answers, some that were unnecessarily invasive, multiple were OMT answers, and one answer that would be the normal medical thing to do. A lot of people got the question wrong, because it was OPP, so they assumed the answer must have been some form of OMT. It wasn't. Stabilize the patient, and if it's beneficial then do OMT.