No, it is not and should not. A young healthy chameleon who doesn't want to eat anymore is full, which means overfed. Many owners make this mistake and it can shorten life of your chameleons easily. In my opinion, it's one of the most made faults in chameleon keeping. See
this thread and
this one to learn more about chameleon feeding and feeding amount.
That's crazy.

Honestly, I think this poor guy will suffer from fat liver and renal damage soon if you don't stop feeding those huge amounts of feeders. Bearded dragons can even live (and very healthy) without any insects as feeders, but only green fresh food, reaching ages around 15 years. I don't want to offend you, but that's really something to think about to keep your reptiles healthy in future.