FIFY
The Army views and handles aviation much different than the other services, seeing it largely as something to support the rest of the service and not a tool that can work independently. Their pilots are just as skilled as any other in the US military but they really don't get involved in the larger air campaign and their skill set doesn't generally include it. That is reflected in the composition of their aviator corps, which is predominantly CWO's and not regular officers. That is the most basic reason CWO's won't work very well in larger Naval Aviation.