Disagree. CGI is getting "easier" in the sense that even low budget films can do things that used to only be reserved for large budgets. And there's so much CGI in use that you don't notice these days because it's so seamless / not the center of attention (e.g. check out this before/after about Wolf of Wall Street: https://www.youtube.com/watch?v=bP2sJqoZD7g).

But at the end of the day, you still need good direction and editing that involves understanding the limitations of doing things on the computer vs. in camera. I think this video about Dune provides great examples: https://www.youtube.com/watch?v=uIKupTibxKQ. One example provided is that using green screen can sometimes result in "flat" unrealistic lighting because the camera doesn't expose the image the same if representative lighting isn't used to actually capture the shot.