If it's unticked, it means it won't ask again and will automatically be refused access.
if you delete it (click -) then the next time it runs, if ever, and it thinks it needs full disk access it'll pop up and ask you, in which case you can click no (or yes).
I'd not worry about it. It's a part of MacOS and not some third party thing so even if you tick it and give it full disk access I imagine it'd be fine, but leave it unticked. Or remove it and see, out of curiosity, if it pops back.
It might have been something new in 11.1 to do with the O/S needing secure access itself back to the disk and it automatically refused itself full disk access. No idea.