why? - he doesn't have the mentality - as you said he gets the penalty area then looks clueless.
can it be coached - personally i don't think it can but i'm not an expert - certainly i doubt i can be at this stage of his career
detriment? - no
That's better, I guess; regardless of whether we agree or not.
To be honest my biggest gripe was your lazy assumptions about hater-dom (or similar) being at play.