If there had been a Wonderboy or Edwards , a point fighter that can inflict enough damage to make you hesitant to come in the way Khabib does then maybe that would have been a problem for him. As LW that fighter didn't exist. Justin hits as hard as anyone and look what happened.The why is in not having a choice because the stand up is so good it exposes the weaknesses in his own game and the shoot follow-ups are much, much harder to come by because these guys have exit points a mile away from where they struck from, which is not the same as what he encounters currently - he scrambles and trades and then he's grappling and the opponent falls to pieces and is subsequently terrified for the rest of the bout, understable as that is from their perspective.
Before his loss, Ferguson was 'the one' custom-built to match Khabib and not be intimidated whilst providing volume and aggression by the bucketload.
I don't think a new level is set for Khabib - he's at a level where everything is scrutinised because there's discussion of greatest of all-time etc. at which point these guys get broken down to the minutiae. Thing is, though, strikers of the level I'm talking about are so few and far between that hoping one emerges in Khabib's division whilst he's still at his peak is like waiting on a unicorn - Khabib can only beat what's in front of him, but you can't sweep his flaws under the carpet. He's vulnerable to certain things and it would have been great to see a truly masterful standup exponent go at it with him just see how it would turn out for the both of them.
Barboza and his KO ability with his kicks was beaten to a oulp income of the most savage beatings I've ever witnessed.