Company management typically sees engineering as a problem.
It's hard to come up with technical solutions when your only tool is your worthless MBA.
No one is discounting the need for air power.
The question is whether or not a separate service is necessary and whether or not it is cost effective to have a separate service.
The last time we saw serious Air-to-Air combat was WWII. I'm sure the USAF made sense at the time.
Will history repeat itself? Will there be another serious air war in the future?