Before June 2008, it was really because of Teng Teng's incompetence. Otherwise, with the popularity at the end of the game, some of Jun Jun's works must have been popular a long time ago. Strangely enough, he was too loyal to sign a company and decided to identify Teng Teng as a bad company.
But all this will get better gradually, because he has signed the company and issued EP now.
I believe that as long as there are good film and television works, he will become popular again.