1. We do not negotiate on whether to take penalty or not in a league game. It's true that many players forgive you for that, but in a league game the default is to skip right after. The cow threw the worm in a position which a bad zook shot took 81 from it.
2. In general it depends on how much the cow affected the game. If you had won by a tiny margin, in the same scenario, still dt would be declared as winner. (late-penalty + 81-undeserved-damage)