I work for a well known software company on a SaaS product. We've been using Docker in production for around 2 and a half years, and started integrating with docker in earnest close to 3 years ago. We were mostly drawn to the ease of creating resource isolated processes. We run in AWS on our own brain dead "orchestration" system but we are looking to use something purpose built soon.
To give a sense of scale we have over 1000 containers running at any given time and go through ~15k per day since our containers don't live for very long.
I'm not sure what press is mixed but the industry as a whole has certainly embraced containers. I'd be suspect of any press that determines containers are vaporware and not worth the time.