They haven’t particularly made a comment on the situation so much as acknowledged it’s happening. They seem to be going with the story that they had nothing to do with it and this is news to them. Hope to hear more from them soon so we can find out more about the situation, how and why this happened, etc.
(The sceptical tone isn’t because of disbelief of Collin, it’s because we don’t know enough about the situation to be able to say Collin is or isn’t telling the truth here.)
Do you think being maintainer makes you some kind of all knowing being? That’s not how that works. You write code and review code of others.
If there are multiple maintainers, you may obviously not even notice what another maintainer is doing; then you wouldn’t need multiple maintainers with write access if you could handle it all by yourself.