You have technical knowledge applicable to the problem, and you share it. I love that.
You miss an important feature of the solution shown in (I presume) your rush to demonstrate your bash knowledge: the ability to edit a filename shown, in place. Brace expansion doesn't do that, doesn't show you the new filename before you commit the name change and isn't even close to interactive. This part is less great.
You have technical knowledge applicable to the problem, and you share it. I love that.
You miss an important feature of the solution shown in (I presume) your rush to demonstrate your bash knowledge: the ability to edit a filename shown, in place. Brace expansion doesn't do that, doesn't show you the new filename before you commit the name change and isn't even close to interactive. This part is less great.
> Something like this isn't really necessary.
It may very well be necessary for someone else.