If I'm working in software development, the last thing I want to do is trust my coding workflow to an alpha-state platform.
Im personally down to try alpha software usually, i just havent found the need to retrain all my muscle memory to not use GH yet, as much as I hate it's owned by microsoft nowadays.
They also do offer pretty good "free tier" services for CI via Actions that otherwise you'd need to pay yourself
Also, I moved about 10 repos to a private Forgejo installation with pretty average (non-trivial) GH actions workflows. Zero repos has workflows running oob (java, .net, node). The moat is a bit there.
A feature, not a bug. If I go to a website meant to distribute source repos (git, etc), I expect them to be FOSS. Also, the title mentions 'EU Open Sources [...]' so this is irrelevant to the topic at hand.
Either way, perfect is the enemy of good, and this is good. You can find hypocrisy or lack of perfectionism anywhere.