Look. People might well want to save a file in a different folder while using the same name *without* intending the new file to be a backup. It's a usability issue is all. I can save files in a blink of an eye, using any name I want, in any folder I want, in any other application. In SolidWorks, Adobe Illustrator, Photoshop, MATLAB, you name it.
But you come to Creo, and suddendly it's a science. You can save a file in a different folder using "Save As", but not with the same name. Or, it seems, you can use some "save as backup" option to save the file elsewhere using the same name—though if your motive is not to create a backup file, then you are likely to not even notice that option.
I would rather stare at the blinding sun for 60 seconds than have to use Creo on a daily basis for work. I don't care how long these misguided options have been around—they are still misguided.