TBH the open source nature of gitlab means that any sufficiently large and clued-in hosting company (think: servercentral/deft/summit, whatever it's calling itself these days, or one of its competitors) could put up gitlab instances for people to use and meet more nines of uptime than github. It doesn't have to be the gitlab company itself running servers with the httpd and back-end database.

I understand the meaning, however, in that they're well positioned by having the company name and domain name, same general way that non-technical people will pay wordpress.com to host their blog/small website because it's very easy, rather than DIYing it or paying a 3rd party.