At this point, a hole in the market is open for a competitor offering a private SaaS solution. The downward trend has had a long tail, but these outages seem to have become business as usual for GitHub in 2026.
(I said "believable", not "realistically")
So the real reason GH continues to grow is that betting on GitLab just means that you'll probably run into the same problem at some point, except they aren't a hyperscaler and if even Microsoft has to span their workloads into AWS to scale, what hope can you have with smaller vendors?
The annoyedAtGitHub counter is so far monotonically increasing though.