I felt it was more of mannerism than disrespectful towards the opponent. Yesterday also he did those shaking and tongue out etc but when he was interviewed, he was respectful towards Srikanth and he even mentioned that Srikanth was technically better player at net etc. So, i felt this is nothing but his mannerisms which is hard to get rid of.
Well done to Loh Kean Yew for not giving up, clearly the training with Victor helping his potential blossom.