It seems you misread/misinterpreted what I wanted to say.
I mean I started the phrase with "TJ did great against Barao."
My point was that it was not so much that TJ "broke" Barao (though twice losing that badly obviously was what did the trick), but the point had more to do with Barao (or Silva, or Fedor, etc) and their own mental state (after the loss) than what TJ did per se.
But if you look at it, Fedor loss (to Werdum) was bigger (in terms of accomplishment) since Fedor was the consensus unbeatable GOAT... or what Cain did to Junior was bigger in terms of the beating Junior took from Cain... and that is what I meant about "not being the best".
I did not mean in the sense TJ was not the best of his division (which IMO he is still not but he can certainly become and very soon...
But he certainly is the top guy there, and I don't think anyone can question it.