I don't know about anyone else, but I've been deeply unimpressed with the output of the google testing blog.

This example is not wrong, but it's not particularly insightful either. Sandi Metz said it better here, 8 years ago https://sandimetz.com/blog/2016/1/20/the-wrong-abstraction

The testing pyramid nonsense is probably the worst one though. Instead of trying to find a sensible way to match the test type to the code, they pulled some "one size fits all" shit while advertising that they aren't that bothered about fixing their flaky tests.