I think most will disagree with the view on Umar Akmal’s technical abilities. Getting out early and throwing wickets away is part of TECHNIQUE as well. Its not just how you hold the bat( e.g. back lift, limiting gap b/w bat and pad, follow through, closing face of the bat etc), its also presence of mind, not pushing at everything outside off and giving edges, not hooking everything that is chin height, not trying to score big boundaries.
Umar is a good player no doubt. However he needs to be sit out more to understand the reality of TEST cricket and appreciate it.