i agree to a certain extent. Mealworms are hard to digest and have little goodness in them.
they can chew there way out & or do damage internally to your herp. Feeding the appropriate size and well hydrated mealworms reduce's the risk. and feed to your herp well before lights out so they have time to digest etc
Ive gone off mealworms. Crickets are the best food out, roaches are up there but prone to escaping, locusts are good.
Waxworms as a treat if at all.
jmo