It wasn't an insult, and it wasn't meant to be funny.
Here's the definition from word reference
WordReference Random House Learner's Dictionary of American English © 2021
mo•ron /ˈmɔrɑn/
n. [countable]
a person who is stupid or lacking in good judgment:
Put that knife down, you moron!
a person of borderline intelligence in a former classification of mental retardation, having an intelligence quotient of 50 to 69.
:) I happen to not meet either of those standards, and fun fact: you clearly on't understand that special ed is NOT spelled sped, and capitalization is quite important. At least I know 'W'here the dark mode is :)