Physical prowess seems cool. Everyone daydreams about flipping around like a ninja, or hoisting cars like the Hulk, or leaping over rooftops like Batman. Humans historically think of predator animals (Hawks, Lions, T-Rex) as being "kings" or optimal examples of animal form.
But, of course, physical prowess is not the best way for an organism to survive. Intelligence & community are much stronger traits, which is why humans dominate the planet instead of Lions.
I don't think this concept is especially controversial. People generally agree that community and intelligence are good traits. But what strikes me as odd is the idea that physical combat - especially "ambush" style combat - is somehow the best, or most pure, or most true determination of worth. The only real advantage I see to combat is that it has an immediacy that most other forms of conflict resolution lack (except, perhaps, Rock-Paper-Scissors?). So perhaps this obsession with physical combat is really just impatience - an unreasonable desire for things to be resolved RIGHT NOW.