Depends on the why. But you do dismiss it, as you forget that they have the potential to make this unique, more than a few features, but really huge ones. Game Freak don't, they reuse ideas. Heck, I've seen G/S/C remakes fail more than not, but that is because people are mean to them.
It is a great way to start from a beginners perspective - something you know and love so much that you want to add to. Practices scripting, tiles... Everything really. Don't like them, don't view them. But they are a good place to start for many, and allows for skills they need further on.