Charles will have a height/reach advantage, but I'm not sure if that would be enough. The same could be said about his fight against Tsarukyan, but he lost.
Btw, once I have found a very heated discussion, that Oliveira won that fight. Arman did incredible by escaping choke at first round, but round 3 has ended with Oliveira closing guillotine on Tsarukyan, and fight has ended Tsarukyan face down. People say that he was submitted on the last second or exactly at 0:00 on the clock. People say that when siren sounded, Tsarukyan was unconscious.