What is good editing?

This Article/Video was about what makes good editing, and what makes bad editing. In the video we see some veteran editors like William Goldenberg ( The Imitation Game) Joel Cox and Gary Roach ( American Sniper). One of the main points that they address is that the best editing is the editing you don't notice. If the viewer can watch a Film and understand the story perfectly and not getting bored at all, the editor has done their job. But bad editing can be where your brain notices something weird and has to think about it, breaking the emergence. Also if there are too many scenes, cutting them completely can be a bad call. Try to edit in a way that keeps as much content as you can in without being to long and essentially, boring the viewer to tears. I thought this article was informative, especially to some one who is interested in editing like I am. But I couldn't help but feel they went over the basic details without actually explaining what makes editing good. Watching the clips they provided I really couldn't point out what made those particular shots have great editing. But that's probably because I don't have a masters degree in Film Editing. But they do. I would have liked to see some good examples on how to edit your shots to perfection, but this video on its own did bring up some good points and I thought it was still good never the less.