They are. Your intent may not have been contradictory, but the messages received by everyone else were contradictory. You should own that if you are serious about doing better. Your intent doesn't really matter in these situations.
Yeah, really weird that after an apology announcement they’re still defending the original message at all. Not too hard to say “Yes, those messages contradict each other. The first one did not communicate our actual plan. The second message is a correction and clarification.”
More cynically, the intent might be blaming image maintainers: since obsolete images that appear current are a problem, responsible maintainers will delete them before losing access; then Docker will be able to tell inconvenienced end users that the maintainers autonomously and unnecessarily decided to remove their images.