Coming in 2018, you’ll be able to forget everything I said in How’s your back-end? Part 1. WordPress is about to undergo a change in the way the visual editor works. The new system is called Gutenberg.
Gutenberg is still in development, so there are still kinks to be worked out. However, it promises to make the visual editor much more of a wysiwyg experience. See Diving Into the New Gutenberg WordPress Editor on Kinsta.com for a good overview of what’s to come.