Codification of a schema needs to be considered a regressive step, that limits future discussion by narrowing acceptable language. The moment you define what a thing is supposed to be, all meaningful inquiry will immediately shut down in deference to that definition.
Current charts of the growth and development of a form tend to be lists of landmark cases where frameworks were defined forevermore. For videogames, let’s say Super Metroid. Or A Link to the Past. Dracula’s Curse, Sonic the Hedgehog 2 — all of these idealized moments when something was crystalized as the template for all future discussion.
I am going to counter that these lists are in fact lists of the death of a form; of every turn where its potential was narrowed and stripped away. Any progressive chart of a form will list branching points where new and valuable concepts were introduced to the language. New potential. New nouns, new verbs, new adjectives. New examples of an expressive functional application of the form. Not definitions; propositions.
This is why, for me, game design began its slow death with Super Mario Bros. — not through any fault of the game itself, but rather through its canonization and codification. The SNES only cemented the rot, after which there has been no escape. I don’t know that we’ll ever escape it. This medium is rotten at its core.