In reply to Greg Schoppe.

@John

Disable Gutenberg will be ready for WP 5.0 :)

@Greg

"Disable Gutenberg currently removes the actions and filters that the Gutenberg plugin uses to install itself, but that will probably be ineffective against the merged version of Gutenberg."

Disable Gutenberg will be updated as needed to disable Gutenberg once merged into core.

"So, if you use Disable Gutenberg, you have to trust a third-party developer to update their code to properly remove Gutenberg, before the 5.0 release."

Been developing WordPress plugins for 10+ years with lots of happy users. No problems keeping up with Gutenberg.