You are misunderstanding the "fair play" aspect quite a bit. Adding an option to speed up the gameplay becomes a requirement instead of an option. Effectively you no longer have a "Make the game faster" and "regular speed", you have "regular speed" and "extra slow". This is different from item/effects which increase the speed in other ways, since animations are part of the the baseline rate.
For an existing example, take a look at text speed. It currently defaults to the maximum setting. The option used to default to half, but users who didn't notice the option were at a disadvantage compared to who did. This was bad design so the default was updated to address this issue.
I'm sorry if you dislike our decision, but we are not interested in adding this option at this time.