The style presented is far from the norm at the moment not just because of gate-keeping and over-engineering, but because web software is refactored and improve

The style presented is far from the norm at the moment not just because of gate-keeping and over-engineering, but because web software is refactored and improved so many times over. For example, <summary> only supports a weird set of child tags. Personally I like <details>, but due to this constraint it is not always appropriate. Certain aspects of its native style cannot be controlled. Many event handlers are awkward encode into onclick if not impossible. "Naked" HTML requires a lot of boiler plate. The form helpers that are discouraged relate to validation, error reporting, form authorization, and localization. It's not an obfuscation layer. The encouraged styles are easier on the eyes for now, but it's easy to imagine them developing into issues which would be the subject of some ticket, or else disappearing due to general improvement to the code base (DRY principles, SoC, UI touch ups, etc).