Bustamonte, the correctness of your thread's premise is self-evident. It is unfortunate that the neogaf defense force showed up to shit all over the place. As we've seen, there isn't much discussion to be had around the theory's correctness. Let's instead shift commentary towards implications and remedies.
Longer games that are less engaging are some of the implications already mentioned.
Some potential remedies:
-Find a way to 'tell' with graphics. Don't disrupt the art or marketing departments, and find a better use of the fancy assets with a gameplay design change.
-Find a way to 'sell the tell' and make a game that tells perceived as more desirable instead of lacking something.
-Find something better than 'show' or 'tell'. A door number 3.
-Compromise between the two at a point where show interferes an acceptable amount.
-Invent a new method of combat resolution that prioritizes the 'tell' concept. This could lead to a new sub-genre.