Yeah, here's the deal with it. The army has "preselect" positions for most of those competitive specialties. So you apply for the preselect intern year position out of med school. Then, assuming you're lucky enough to match into a preselect position, you apply for the residency during intern year and the application process is supposed to be a formality. So, the competitive bottleneck is during the application for the preselect position. But the army lists the applicant ratio for people applying to residency. Most of these people are already preselects and have hence already been accepted.
The good news is that there is a new head of gme who doesn't seem to be so full of $h*t like our old one. I asked him a few questions and he gave me some very honest answers (unlike the previous colonel in charge of gme). Also, most programs are moving to continuous contract anyway, so the preselect program will soon be gone.