If anything is very likely, it's that this change is going to hurt DOs applying to prestigious programs. It is very feasible that we may be seeing the end of DOs matching to great programs. Programs like MGH/Harvard and Hopkins, which have a history of sometimes taking a DO here and there, may actually find it difficult to give them a chance for away rotations... It isn't just a match problem. This is also an away rotations problem. You guys ain't taking Step 2 CK early on in the first few months of 3rd year, are you...?
I have already heard from Ophthalmology faculty that this change is problematic for their ability to take a chance on people from lower tier schools and to figure out who to allow to come for rotations. Name of your school was important before. Now it's even bigger. DOs are going to hurt from this, no doubt about that.