True, although if nothing a discrete “You want full staffing ready for something bad next week” would have been polite.

The bigger question, though, is how much trust you can have with the kind of people who would zero-day most of the internet for a marketing exercise. Discrete notifications would have closed the vulnerability window for a lot of people (think e.g. stealthy AWS, Rackspace, etc. upgrades) and it's not clear to me that Codenomicon is likely to produce future tips of such value as to outweigh that.