I don't understand why they offer an Enterprise version of Stash, but not Bitbucket! I do SCM migrations for companies, and I find people pick up Hg a lot faste

I don't understand why they offer an Enterprise version of Stash, but not Bitbucket! I do SCM migrations for companies, and I find people pick up Hg a lot faster than Git. But no enterprise customer is going to use an externally hosted solution.