That was a joke. I find the name amusing because it implies two things:
1. That smaller businesses aren't "enterprises" and
2. That the software is mostly functional, which is mostly isn't until that team of consultants comes in, and then it sort of is. Enough, anyway, although interestingly most "enterprises" that use "enterprise" software are the ones whose customers have little choice and thus have the luxury of saying "tough titty" about the frequent downtimes and other problems...
Sorry, must have missed the smiley. I was in the database business for a while and got tired of various bean counters saying, "Let's use MySQL: it's free" or having consultants who only know Windows saying, "SQLServer on Windows 2K is for you" when it wasn't. Both those products have their places, but if you have lots of data and lots of transactions, they probably aren't the right answers.
Sure, there are small business or even departments than actually need enterprise class solutions, be it database, applications, operating system, or hardware. There are also large organizations that would be served just fine with MySQL.
Enterprise has to do with the scalability and robustness of the solution, not the size of the business.
For the record, I'm an Oracle, Apple, and Microsoft shareholder.