In reply to Peter Cralen (@PeterCralen).

Yes, these “tens or hundreds of comments” from active and interested users/devs/trainers are indeed representative.

Your comment is precisely what's in discussion here: criticism from active and concerned users treated as “ignorance” or simply “resistance”.

WordPress evolves by integrating concerns along with innovation and trends. I don't remember the last time such a criticized change was integrated in a rush like this everything-in-the-customizer approach is.

If it's a so well thought and tested approach, why this kind of response to criticism? Why the rush?