These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Also, the wheelchair fight between him and Charlie.
Unfortunate Implications: Apparently, Kovic's realization that war is abad thing doesn't occur to him until he kills a fellow American soldier as a result of friendly fire... after felling a large number of Vietnamese people.
Wangst: Kovic himself wasn't portrayed as sympathetically in this film. Instead, he was played out like an emotional adult.