So Mousasi got "exposed" because of a subpar fight against an up and comer who LnP'd him to death and got owned in guard for 5 Rounds? At least he didn't catch a lucky triangle in the 5th Round after getting his ass kicked.
I know MMAth doesn't really work all the time but think about this:
King Mo beats Mousasi
Feijao beats King Mo
Hendo beats Feijao
Anderson has beaten Hendo, and you can't really argue that Hendo is better now than he was then.
I think all of the above beat Mousasi in prospective matchups and Anderson would beat all of them.