I think that's going out on quite a limb. Worse, I don't think finding data on the job market opportunities for DOs vs MDs is easily obtainable. In my n=1 experience, I know 3 people who have completed DO rads residencies and none of them had problems securing jobs in their hometowns/desired locations. I'm not close enough to any of them to start asking about compensation details but in my skewed perception of the quality of their homes and cars, I don't think any of them are really struggling. They could be though I guess, who knows?
Anyways, let me know if you find the data on DO vs. MD job opportunities in rads. In addition, I'd also be interested in any surveys/studies that demonstrate quantifiably how bad the market is right now for any rads graduate; would you know any?
EDIT: Considering the breadth of potential opportunities, I think I might be more inclined to agree that DOs would probably have a harder time securing those extremely premium jobs paying 1mil/yr out of residency in Boston or even the academic jobs at high-brow institutions. I'm really not so sure though that the PP gig in a suburban/small metro setting is harder to attain by being a DO. We can sit here and speculate until our faces turn blue but in the end your stance will probably parallel your thoughts on the practical significance (i.e, real-life implications) of being a DO. I think 8 pages is enough for us to have some idea of where certain people stand on that matter :-D
Anyways, I have to cram about things my preceptor probably won't even ask me about--have a great day SDNland!