I'd be very surprised if the service they've announced is a linter. The announcement says it can even analyze parts your code that are more computationally exp

I'd be very surprised if the service they've announced is a linter. The announcement says it can even analyze parts your code that are more computationally expensive than they need to be. I'm not sure I understand the skepticism--surely they have among the largest code repositories in the world. Why couldn't they train models on it to look at best practices and even compare code practices to different metrics.