[johnchristopher]

Yeah. Big workflow failures here. The person who changed the code doesn't have a revision system in place or the skills/knowledge to put the site back up after such a minor edit :/.

[Nextgrid]

How do you even reliably version-control something that relies on editing its own code?

[johnchristopher]

There's some confusion here. WordPress themes and plug-ins don't rely on the built-in web editor. That's why it can be safely disabled.

What that guy did is no different from sshing into the prod server, live editing a Django plug-in and refreshing the browser.

Version control of the plug-in won't protect from that. But it's a handy tool to manage regressions.

Rolling back changes and editing a live plug-in are different problems.