In reply to Poena.

Authors that lack imagination (and zerif really lacked it from the small time I spent testing plugin compatibility with it) were doing 120k$ a month, so maybe it is someone else that lacks imagination, or at least have zero understanding of his users or maybe just zero interest in serving the users?

If themes are moving towards being style guides for new content blocks,
That is just an hipster buzzword filled sentence that have no connection with reality.
First no user will want to change how he want to edits document because 5 people decided that the developers of word and all other editors just didn't had a clue in the decades they spent time on it, and those 5 people are so much smarter.
Second. On a plugin I work on, minimum requirements is support of 4.2. Even if 4.8 was released today and the editor was really a work of genius, it would probably take 3 years until people will be able to start designing themes only for that environment, and current themes used by thousands of sites already will just will not have any incentive to change.