Anyone who has been in for any significant length of time is probably pretty frustrated, and that goes for all three branches.
This is key to understanding why a lot of things are the way they are: "In the end, the line is getting approximately what they need..."
When the AF screws up planning (again) and runs dangerously short of pilots, they eventually do things (sometimes effective, sometimes not so much) to retain or train more pilots.
Until the situation is so bad that Commanders have problems getting what they need and there are newspaper articles about either poor care or lack of access, from the perspective of whatever GO/flag officer is looking there really is no apparent problem. The only feedback to the top is "we don't have any doctors and can't go do what we need to."
When they rack and stack the problems of the day, it looks like base housing, that proposal for another CBT as a reaction to whatever idiot did something dumb in public, or a new $1B boat or plane is a much higher priority.
If you are only in the position for 2 years, every decision is a case of "what is a risk to me now." A demoralized medical corps that continues to keep everyone relatively health and alive is a "tomorrow problem".
While some of the high level priorities are misplaced, fundamentally it's not like they are irrational or deliberately trying to dismantle the military health system (at least, I hope not). It's just that within their 2 year horizon, other things look like they are more important.
Eventually tomorrow will come and the hollowed out medical services will be a much bigger problem than it needs to be. Fixing it, if they even try, will take much longer and cost much, much more than it would if the system had been maintained.
It is what it is.