It's a blog announcing a new feature for their platform. It's not like they are taking an ad out on the New York times.
If not many people find it interesting it won't stay on the front page for long anyway.
Apple announces new iPhone, listing specs. Should it be on HN?
Google announces new service. Should it be on HN?
In general, if it's something tech related that the community finds interesting, I don't see why not.