If you select Fill, the second option should be the role you DON'T want
During role selection for que, when you select Fill, the second option should be the lane you don't want. For example: Fill, (except) Top
If you are okay with any lane, you can chose fill, fill and it'll be just like before.
Obviously this can be a problem with que times if selecting not Support, but If riot can figure that out, this would be a great addition.