Afraid not. Did you actually watch all of the fights with those two? Fedor won two because he could hold Nog down AND had an advantage on the feet (which ummm, I'm afraid Khabib doesn't have, just the opposite). In second fight which ended in a no contest, Nog was doing much better on the ground, so Fedor strategized in the third fight and kept it standing a lot (which Khabib could not do because he would get tooled standing). We also don't know that Khabib could avoid Chalres's subs or avoid getting rolled with them like Fedor did, that is an apples and oranges comparison.Khabib vs oliveira would look like fedor vs nogueira.
The only reason Khabib could maintain in the standup against guys like Dustin and Justin is that they were afraid of getting taken down, and Charles would have no such fears. Khabib has the appearance of invincibility because he never faced a truly tough stylistic matchup, which is exactly what Charles would be,