I agree with the comments of Profile - Neil_Lavitt - Roon Labs Community in the 1st post above. I wanted to delete a download this morning and accidentally went to Remove from Library and was asked if I was sure if I wanted to delete the album from my hard drive. It was only then that I realized that I might have gone with the wrong option and so I backed out of it.
Another variation of this feature request would be to provide an option to prevent users on ARC from doing anything destructive such as deleting music.
P.S. I find ARC is very good. Thanks to all at Roon for providing this cool capability.