Full disclosure: I do a lot of work with cloud providers and GCloud is one of my partners.
I think the article covers a very real issue with the pace of k8s. GKE is particularly good at staying updated. There are other providers that are good like Stackpoint Cloud.
If I were going to make an ad for GKE I'd point out that they probably have the most robust internal fiber network of any cloud. AWS tries to push packets onto the public internet as fast as possible.
The load balancer you get with GKE is seriously overpowered and under priced (which makes me love it).
Maybe EKS will be amazing (but we don't have evidence yet). Azure is getting pretty good but they're a bit late to the party. IBM isn't bad but they've struggled the most with staying up-to-date.