The wonderful acrobatic action scenes would make up for his raw acting skills. His character in the film was a man of prowess, not a guy with a complicated mind like Qin Guan's. His main task was to just shoot the action scenes well.
The hard-working young man performed as Director Zhang had expected. He didn't have the expressiveness of a professional actor, but he performed martial arts with a good poker face, which surprised Qin Guan.
The man had been criticized for his lack of acting skills, but he did all his stunts himself. He didn't ask to use a body double.
Most actors had no reason to laugh at him considering this advantage.