GCP is basically just a toy. If you're hosting something important there you should probably not do that. It works as a Plan B, but by no means should Google be your Plan A. I don't know what happened in this case, there's a chance it wasn't Google's fault but it doesn't matter, Google already lost all benefit of the doubt long ago.
Shopify is all on GCP and works well.
Nobody doubts Google's engineering ability. It's their soft skills that are lacking. Google is culturally unable to understand the concept of customers.