I find it hard to believe that rust control isn’t mostly a labor problem, the navy has virtually unlimited low cost labor. Instead of posing for that photo every sailor in that photo should have been maintaining the ship, even the officers.
I suspect it’s a mix of mismanagement and stretched resources, not strictly one or the other.
Apparently, they are doing neither
As an example, I swap my own winter and summer tires (mounted on separate sets for wheels; I have my limits) because it gives me a twice yearly opportunity to asses the condition of the brakes and suspension components while I'm mucking around with the wheels off.
Keeping your finger on the pulse of a machine by looking after it means you spot problems before they become disasters and inform how you operate it to make the most of its capabilities and avoid its weaknesses.
Capt. Malcolm Reynolds: Love. You can learn all the math in the 'Verse, but
you take a boat in the air that you don't love, she'll shake you off just as
sure as the turning of the worlds. Love keeps her in the air when she oughta
fall down, tells you she's hurtin' 'fore she keens. Makes her a home.