The fact that they were upfront and honest about it and that they even live streamed themselves fixing the problems makes me want to use gitlab even more. If anything I have even more confidence in them. You didn't hear a peep from Microsoft when the forced windows 10 upgrade bricked thousands of laptops. Perhaps that's why such a huge portion of developers prefer OSX/Linux to Windows? I've run six businesses over the past decade and when windows 10 started rolling out I was in a Houston office that lost nearly a hundred terabytes of client data. We did everything by the books, paid for the business and enterprise editions of Windows, used their servers, used their proprietary software stack, used their support service, and they still fucked us and didn't really seem to care or think they did anything wrong.
I have another company that runs on a completely open stack, where pretty much nothing is integrated by a specific vendor. We have hiccups, but we've never had the OS get hijacked and upgraded.
I've noticed most start-ups run by devs run on a more open stack and hack their way through problems on the cheap, and the ones run by corporate executives try to keep things as closed as possible, but end up spending millions to solve problems that they could have had some people solve for fun on the internet.
I prefer to use the right tool for the right job, but I wish companies like Microsoft would be more open when they cause huge issues that end up causing monetary loss. I make sure all my critical infrastructure is open source these days.