> We determined that the rollout of a fix for an older bug report pertaining to Slackbot responses not working in org-wide or multi-workspace channels, was the root cause.

I'm not trying to be paranoid here but I work for a very large company. We got slackbot responses that looked a lot like phishing URLs. We got slackbot responses with broken english, and emojis we never use. I find it very hard to believe that this wasn't a security incident.