These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Not really, most of the time he's getting hurt with no clue what he's doing or what to do and The Monk and Lu Yan look at him with annoyance at times with him even getting "The Reason You Suck" Speech from Jackie Chan during the first half of the movie. When he grows up and trains under them and start really learning what martial arts is about during his training, he's able to defeat the Mooks but knows he doesn't stand a chance against The Jade Emperor and his Dragon.
Unfortunate Implications: The amount of raging people did over the audacity of including a white guy in a martial arts movie would be (rightly) viewed as astoundingly racist if even half the outrage were expressed at including any other ethnicity in any other genre. (Perhaps a black family in Camelot?)
The gang leader is shown to know Taekwondo. Some viewers couldn't avoid thinking in a "Kung Fu > Other Martial Arts" message.