He had help. He couldn't have done it without the UFC wanting this. Really he was their vehicle to doing this. Remember that they also brought in undeserving Sage and paid him more than vets because they figured he'd appeal to certain demographics... Ronda deserved all of that press? Brock is jacked, but did he deserve a title shot in his fourth fight?
It also took some lameness from other figh... Mendes keeping position may win, even gassed (but note thst he was chosen over Edgar who wasn't allowed to come into the cage to call him out); Aldo - need I say more? (also UFC:no hematch), Nate II - a simple trip by a guy who's over six feet tall could lead to a different decision or even a stoppage, Alvarez - whatever... maybe he's just a derp who got lucky a few times. Still think he should've 73'd and gone for some takedowns.
UFC again gets some blame for gifting a "super fight" between two beltholders who haven't defended either title once.
Don't give the dude more credit than he deserves.