No it wasn’t.The Amazing World of Gumball were originally intended for [adult swim] when they were pitched.
It just occurred, someone did it but it is a case that doesn't really have a known origin.Who came up with those rumors that Gumball was for AS?
Also, I read something on how Secret Mountain Fort Awesome was pitched to Adult Swim (but I'm skeptical).
Wasn’t Regular Show originally going to be for AS?
No it wasn’t.
Since when was Class Of 3000 supposed to be on Adult Swim?