Except that it is weighted so it won't roll like that.
https://www.macrumors.com/2015/11/11/ipad-pro-tidbits-a9x-apple-pencil-tmobile-more/
If you start rolling the pencil, it will keep rolling for a bit (and eventually stop rolling with the word "Pencil" facing up. If you just place it down it will just roll into that position and no further.