No, strength + speed + technique and skill > technique and skill. Conor isn't better than RDA, he's better at moving in and out and that's about the only aspect of martial arts he's better in. But you cannot move in and out against someone so physically superior, he will get walked back there's no debate about it.
Dumb computer nerd fans that flock to McGregor don't understand how pressure works in the cage, because they have never been in there. But if there's one thing every fighter alive knows, it's that RDA would pressure McGregor so easily and walk away with a simple win.