The US has no honorable reason for being in the Middle East - if it did, it would also have invaded large chunks of Africa, probably North Korea, Saudi Arabia wouldn't be a US ally and maybe send some troops into a few well chosen South American countries for good measure. The world is horrible, and it is highly suspicious that the Middle East was the first mob in need of 'saving'.
With that observation as a premise, it is questionable that the US military is reporting their objectives honestly. I think I can keep track of who the current bad guys are, but I can't keep track of which ones were US allies or created by US adventures over the past 20 years.
If the take-away is the US military would be more effective with flamethrowers then that makes sense to me. If the argument is that they are struggling to achieve their objectives in the Middle East then I assume they are lying about what they are trying to achieve.