No because, while he is part of the larger Marvel Universe collection of threats, he is originally a Fantastic Four Villain, Same as Dr. Doom. This list should be more specific to Avengers story based villains.
Fought Two Captain Americas to a standstill, Assaulted the Helicarrier on his own, Knocked down 3 giants in 1 move, Judo flipped Iron Man with his bare hands, Nearly killed Agent Venom, KO'd Thor with a timed hit... and plays dumb, but is actually smarter than he lets on, all while being an amnesiac.
