This is a blatant lie, and an infurating one.
According to the association of osteopathic colleges (click on page 28 of the report),
http://www.aacom.org/data/annualreport/slideshow/index.html
the average matriculant osteopath MCAT is a 24.5. This is not "1-2 points lower"; this is 5 points lower, or to put it another way, around one standard deviation lower than the average allopathic matriculant. Also, the average matriculant MCAT has actually been dropping a little bit over the last six years for the osteopathic schools, so don't try to claim that the gap is narrowing. Also, please don't bother responding with, "But we do just as well as in med school." Because, in fact, more than 30% of osteopaths who take USMLE Step I end up failing it, as compared to 8% of allopathic takers.
It is insulting to the accomplishments and records of the allopathic student population to claim that the osteopaths are just as good academically as they are, especially when they clearly are not.