The example template is “intended” to be a bunch of implementation examples, since the complexities of a SDK are hard to just describe how to actually utilize. Ravans videos are beginner tutorials for how to implement the core concepts from the ground up (which would also help to understand some of what the example template does).
In the end, its preferable to go ground up, but that is more expected of a experienced developer team, the majority of the users are also hobbyists or part timers and most of them are adapting the example template and just throwing out things they don’t need.
Games like DropInVR are essentially the template with character customization and with a ton of game logic wrapped around it, while things like ZeroCaliber are ground up I believe, its really up to you and what you feel comfortable with. My concept of best practices doesn’t work as well for beginner developers and it depends on how you learn and work best for yourself.