There are plenty of reasons already given as to why those elements are harmful, that it is overused is just the topper.
Again, if it doesn't have any use in the current setting, why not change it? This is such a bad argument. Making new settings is nice, but generally costly and not going to happen with major game publishers. I'm fairly sure we all know this, and thus saying "Just make a new setting!" is basically an attempt to keep a bad status quo. It's much easier to change what we have, especially when we aren't using it anyways.