If mozilla genuinely does not consider enterprise a priority, would you really prefer them to give you some bullshit where they pretended it was?

I think the explicit honesty would be pretty helpful for a sysadmin who needs to make decisions about which technology to use. Yeah, it's blunt, but the bluntness does a pretty good job of not encouraging false hope. Obviously the sysadmin would prefer support, but mozilla just gave a very clear and understandable reason why that shouldn't be their priority.

I think it was the most honest way he could have described it. Every day that passes I experience more cases where being honest is not the right thing to say, in the corporate world, because of politics.

I have a problem with that.

He's making it clear that Firefox is not an enterprise solution. What's wrong with that?

Software delivery is changing. Heavily influenced by web-based software and easy delivery mechanisms (App Store, Steam, soon-to-be-Windows App Store), we are moving into a software delivery and support system of latest and greatest only.

This is at odds with the standard operating procedure of large corporations. What Mozilla seems to be saying is that they no longer support the old way of doing things because they think the new way is better (and I agree with them).