In reply to Devin Walker.

Some of our clients insist on having Admin rights. We try to fight against that but at the end of the day it's their site to do with what they please.

Most stay away from it though as we tell them upfront that it's $250/hour with a 2 hour minimum to fix anything they screw up due to poking around in the admin. ;-)

This is just an addition potential headache for no good reason. We don't owe WP anything in terms of trying out Gutenberg. If we wanted to try it, it sure as hell wouldn't be on a live client site.