...so what you're saying is you want John Ross to be more like Omri Katz in that scene, wanting to work with J.R. and being universally adoring and devoted to his father.
Did you miss the bits during season one where they explained that J.R. and John Ross had grown apart?
Ultimately though, this really just boils down to our respective interpretations of Henderson's acting and the way the character of John Ross is written by the show's writers. Who knows? All these issues you seem to be having might just be part of the writer's arc for the character. Certainly I think we should be giving the show some leeway for having to alter course and accommodate for Hagman's untimely passing, but I still think you're way off. Agree to disagree, I guess.