Additional clarification:
No one lost a verification badge today–If you received an email that your channel will no longer be verified, this was just an advanced notice & you can appeal
The checkmark has never appeared on YouTube mobile channel pages (this will be added soon)https://twitter.com/TeamYouTube/status/1174735005215420416 …
So instead of actually checking you are just making the creators (who may not see this tweet) appeal? This is a backwards way of deploying this. Also advanced notice sounds like you saying you're taking away the verification badge. I know that's not the intent, but it sounds bad.