I apologize, but where I'm lost is where you connect the optimal strategy with the enjoyment and greater cultural meaning of the game. Are you saying my having fun while playing what is perceived to be a sub-optimal strategy is not valid and can therefore not be put forward as representative of the game?
That is a great question and I'm glad you asked.
To get this out of the way:
I did not connect Optimal Strategy with Enjoyment. Enjoyment is subjective, changes from player to player, cannot be measured. Optimal Strategy is objective, measurable by game stats such as turn time, output.
To answer your question:
Firstly, what defines a game? It's rules and objectives right? In the context of designed elements of course.
What kind of game play best represents the game? The playing style that best matches the rules, objectives and design of the game.
Example: In a race game, you would expect a representation of the game to include a play style that best conforms to its rules and objectives. Given that the goal of the game is to be the first to reach the finish line, would you expect the player said to represent the game to:
a: Pick the fastest and most maneuverable car according to game stats
b: The most comfortable car according to opinion
c: The most beautiful car according to opinion
I think it's safe to say that the most accurate depiction is the choice that best suits the ultimate goal of the game which is to win the race isn't it?
If we are to consider that subjective interpretations of the game are all valid representations, whose do we use to define what the game is about?
My point is, a game is defined by the play style the developers encourage through its design, rules and objectives. A player may get enjoyment out of the game that is not attuned to the game objectives but at the end of the day it is what the developers assign power to for the purposes of accomplishing game objectives that define what the game is about.
You can play a race game to enjoy cruising while ignoring the race, but does that really represent the game?
You can pick a slower car that is equally maneuverable as the fastest car, but does that follow the game objective and can that be a good representation?