It is less permissive than Express was though, isn't it? I was under the impression there were no restrictions on who could use Express. If Express goes away now, some organizations will be shut out of the Community Edition due to its licensing terms and have to pay.
If you're running a "non-enterprise" commercial development team with > 5 full time MS devs and you're building apps of any sort of complexity I suspect you won't be using the Express editions anyway. I'm one of two developers in a company of 12 and Express doesn't really cut the mustard for the stuff we're doing which is only moderately complex.
Also bear in mind you're still getting five free installs before having to shell out for your sixth developer. By that time I would also expect that your revenue stream is pretty healthy and the cost of developer tooling, relatively speaking, is a minor cost of doing business.
I work in a company that could be labelled as enterprise, thus I think I couldn't use the Community edition.
The problem is that I'm not one of the developers (I am a sysadmin), but I had installed the Express edition in the past for example to simply compile some code that I found online (free).
Same happened in my past companies, "real" developers were using full blown VS but I was sometimes doing some small project (not as side project, small = "quick hack that I needed and developers had no time to do that")
If they stop releasing Express edition (that's not clear, I've not searched if Community will superseed Express or if they'll keep both) it will be impossible for me to do so.
Having said that, I think this fully featured Community edition is interesting