Khan Academy has been using Google App Engine since 2009 or '10. Since then, the App Engine APIs have changed dramatically (in a way that should make them more supportable going forward) and Python 2 has been supplanted by Python 3. Python 2 reached its official end of life on January 1, 2020. Despite that, we're still running Python 2 App Engine in production while we move to Go[1] and GCP is still supporting our use. (Note _most_ traffic to Khan Academy today is hitting our Go code and not Python 2.)
So, our experience with GCP and their long-term support of offerings has been good and we use quite a few of their services, but I don't think this has anything to do with their ability to fix the product-killing reputation elsewhere in the org.
[1]: https://blog.khanacademy.org/go-services-one-goliath-project...