"...Players Will Optimize The Fun Out of a Game"

And even crazier made up example:

I make that game about riding horses. It get’s it’s dedicated audience over time.
Then in my infinite retardation, I get a license for the intellectual properties of Detective Comics and I introduce The Flash into the game as a new character…
he literally outruns any horse. The game is no longer about riding a horse, it’s about playing as The Flash…

Then there are the players, who really liked the game initially, but they are resentful, because of the fact, that they were bad at the mounted combat… or those, who never touched the game prior to Flash being introduced.
They start playing with The Flash and easily outperform everyone else.

Someone says “Hey guys, that doesn’t seem very fair… nor fun… and more than that, it literally changed the game into something it wasn’t meant to be, can we have the game be about riding horses again?”

And then he gets berated for daring to say, that the king is naked…
“Why are you such an elitist?” “Come on now, that makes the game more accessible to a newer audience.” “Riding horses and mounted combat was stupid anyways”…

Again, the way I see it the fault lies with the devs…