He agreed to move up when the time is right. He said he doesn't like to rush and has to clear out his division first. Scared to fight bigger guys? Are you forgetting he called out Brock Lesnar? Are you forgetting he said he would love to fight Cain and Stipe?
Ngannou is a powerful fighter. Don't get me wrong but Jon Jones is too skilled, crafty and smart when it comes to fighting. That's why he'll finish Ngannou. Let's not forget the fact that he beat DC twice the same person that crushed Stipe and Derick Lewis who both beat Ngannou.