It sounds like what you’re looking for is more long-form tutorials. Those are closer to our quick start guides which we would love to create more of as we have only just scratched the surface of topics. As always, time is the limiting factor, but we are working hard to get as many done as possible. 
The how-to guides are supposed to be shorter quick shots on how to do one specific thing. The learning tracks I mentioned are more a guided tour through parts of the documentation. So, for someone just starting out designing levels, we might have a Beginning Level Design track that walks you through the pages we think contain the basics of using the tools to create levels. These are less about creating something particular and more about leading people to relevant pages.
The page you mentioned isn’t actually one of the so called ‘how-to’ guides I was referring to, though it is somewhat similar. In fact, it was written before the video tutorials were made. The video tutorials were designed superficially to be a more in-depth walk through of the high level concepts in the written guide. We never went back and updated the written guide mainly because of time, but also because we felt video was the best, most useful format to present that information.
In general, we have to make conscious decisions on what formats to create things in to maximize their usefulness because there simply isn’t enough time in the day to provide every thing in every format. In a perfect world, we’d love to be able to do just that.
Thanks for the feedback. Don’t hesitate to let us know what kinds of topics we should cover and what formats you find most useful.