Nope. They're busting the inner platform and having config live in the filesystem to get versioned like anything else. Good luck with those prejudices, though.

Does it address config drift in production where users make changes that aren't reflected in the versioned codebase? The question is not intended as a retort, I'm interested in the answer.

The prejudices I have against Drupal are the result of my experience of it starting as far back as version 4. I don't believe they are unfounded.

You're not wrong at all.

I'm currently investing moving our sites (a network with 1M+ visits/and 12M+ pageviews) from Drupal 6 to Rails.

We have a large amount of custom code (I've written 20+ modules for this platform), and yet we've gotten to a point where we really want Drupal (and PHP) out of our lives, because it isn't worth the headaches anymore.