In other words: "we wish this didn't happen, we're absolutely not sorry at all and did nothing wrong. Oh, and the new CoC obviously applied retroactively; shall we call you a waaaaambulance?" That is not an apology, that is yet another insult; do you think the users are bad at parsing it (yeah, you Did Something and that's it, fixed)? Merry Christmas to you, too (oh yeah, plus the traditional "posting this right as the holiday starts in the hopes of avoiding Streissand effect," very cute)
Edit: whence "this is not an apology"? A glossary:
- "I apologize": "I wish to fix my fault"
- "I'm sorry": "I acknowledge my fault"
- "I regret": "I wish I wasn't involved"
See what that means, and see the OP.