It's not insinuating anything like that. It's stating a simple fact that they got 6 Billion dollars for basically zero effort and resources. All of the things you've described are to allow people to buy more games. They cement valve simply as a store front and platform but not a game developer.
This is the point as to why Half life and most other games were basically dropped. Valve made 6 billion in passive income while trying to build a game selling and delivery platform. Even the best game in the world isn't going to make that kind of income and it's likely to take more effort than what they've done already.
Gen AI is best used with languages that you don't use that much. I might need a python script once a year or once every 6 months. Yeah I learned it ages ago, but don't have much need to keep up on it. Still remember all the concepts so I can take the time to describe to the AI what I need step by step and verify each iteration. This way if it does make a mistake at some point that it can't get itself out of, you've at least got a script complete to that point.