I understand your point about the idea that they may be unable to speak to the issue due to law enforcement efforts, but for the moment, acknowledgement would be satisfactory. I would be happy with, "We're aware of the rumors regarding the intrusion at Linode this past week. We are working with law enforcement and cannot comment on details at this time. However, we will provide a full postmortem once we are able to do so."
The problem is when the explanation never comes. It's OK if it's not this second, but tell us it's coming, and then follow through. Complete silence is frustrating.