Github actions was down again yesterday. Why is it so fragile?

Is there any official/semi-official reason why actions are so fragile compared to the rest of the platform?

Yesterday, again, my pipelines couldn't build anything cause the action couldn't find a runner. At the moment I could not realistically recommend GH actions to anybody.

I just don't understand how a company this big and with so much talent, is screwing this up so bad? Are they actively trying to push people away or to Azure Devops or what?

(This is the general git community, I understand that, but this question was removed from r/github and I am just trying to understand if there is actual real reasons on the engineering/management side on why this is happening)