The people who are doing this have left the company, and so obviously this isn't going to be up-to-the-minute stories. The company seems to have evolved a bit since they left (one of them left many years ago, so obviously he's out of date) - but evolved, not transformed or anything. Their stories are pretty similar to what the company's still like.
And just to forestall the inevitable, yes, I believe they are indeed ex-employees. It all rings pretty true and they know details that most people don't.
It's a good read. I recommend it.