It' focused on inequality along a particular axis and inherits from a historical tradition which has focused mainly on the disadvantages faced by one side of that axis.
By way of analogy, there are tools to optimize loops during compliation. This is part of the broader goal of optimizing software, but to call them simply "optimizers" and call it a day would be to pointlessly forfeit semantic bandwidth. Fixing problems requires getting specific. And yes, sometimes loops don't need optimization, and of course there are other things to take care of, but there's still value in talking about the specifics.
By way of analogy, there are tools to optimize loops during compliation. This is part of the broader goal of optimizing software, but to call them simply "optimizers" and call it a day would be to pointlessly forfeit semantic bandwidth. Fixing problems requires getting specific. And yes, sometimes loops don't need optimization, and of course there are other things to take care of, but there's still value in talking about the specifics.