Well, that's basically the dilemma in our training model: to get to the level of MD grads, then we have to lose what makes us unique and different.
Personally, I wouldn't change a thing. I love that we have a very solid foundation in lower extremity anat, pod med/path, and pod surg right out of school. I think MDs waste a lot of time personally. In practice, it's basically "use it or lose it." You are beginning to see more and more MD residencies beginning to focus on their specialty earlier with direct match situations (neuro, uro, plastics, ortho, plastics, ER, etc). Years ago, they did int med or gen surg residencies and then fellowship. Now, the knowledge base is increasing to the point where more and more are need to start specializing earlier (and maybe even add a sub-specialty fellowship at the end).
...While we're doing pod office and pod surg rotations 3rd and 4th year, they're doing medicine and more medicine. I know my school had me rotate int med, anesth, ER, path, gen surg, etc, and I felt fairly prepared for my medicine and surg rotations in residency. I think that the main goal of rotations outside your specialty is essentially just to get a basic knowledge of what those specialists treat and what you can refer to them.
In the end, if you can take a good H&P and want to learn, the rotation resident and attendings generally will want to teach you. If you have a good history and a couple diff dx, they will make the treatment plan. They know it's not your specialty and it's just a month rotation, but if you show interest and positive attitude, that goes a long way.