the only thing I can think of is he might be thinking that with Chuck we portrait all pilots as being stupid and underperformers....
but that's like saying Donald Duck makes all sailors look stupid or Homer Simpson gives Nuclear Power Plants a bad name....
or he misread "pays less than flipping burgers" as "need less skills than for flipping burgers . . .
or he just wanted to cuss at the "Duck" . . .
beats me though because obviously he hasn't read any of our strips and doesn't know what we are about.