Chosen Solution
I bumped my MacBook Pro against my iPhone 6 plus by accident, and apparently the Mac won the fight. You can easily see the scratch with the screen off. I have no issues with the phone so likely will not be upgrading it unless I found a really good deal on the 6s Plus for the wife and I down the line. Is this something that I can tape off just the scratch area, and use a polish to lessen the rough angles of the scratch? Or should I just leave it alone and just deal with it until I can trade it in down the line for an upgrade. If it was not right in the middle of the screen it probably would not bother me as much.
It is not possible to sand it off. You either replace the screen or live with it.