Fedor lost to a bum in one of his first fights. Another can who managed to hit him(illegal or not, if Fedor was so great he wouldn't have even let him touch him).
Fedor lost a MW Arona and got a gift decision. He struggled versus a can like Rogers, got submitted in 1 minute, KTFO by a MW in his 40s, got destroyed and ko'd multiple times by a LHW can from the UFC and was gifted another decision.
That's what happens when you try to involve other fighters(not that fedor fans do anything else these day. Just random attacks and discrediting fighters who risk overthrowing his GOAT status), you get told the truth about your hero.