I understand that Hubot is more framework than finished product. My point is that when I am evaluating whether to implement it fir the company I work for vs spending time and resources on some other side project, I am having a hard time making a case for this particular framework.

As for production vs dev: Hubit is either your tool for deploying code or it is not. If there are many ways to deploy the same piece of code you are doing it wrong. Now consider being the Ops guy who has to deploy a critical security fix and Hubot took a cigarette break because it never started properly or some other bug in the code caused it to fail.