While the Royals did qualify for the 1981 post-season with an overall losing record, they did not qualify based on that losing record.
They qualified by going 30-23 in the second half of the split-season, after having gone 20-30 in the first half.
That was also the season in which the Cincinnati Reds had the best overall record in the Major Leagues in the 2 combined split-seasons ........ but did not qualify for the post-season.
Maybe you should get back to your "variety of life experiences" instead of just posting comments that intend to upset people who are mostly fans of a team. There is nothing Ryan Mountcastle did this season to project him as a failed prospect. NOTHING. I am not ready to reserve a spot to go to Cooperstown for him but so far so good. Austin Hayes despite going on the DL again did ok as well. Of course your post declaring Manny Machado a failed contract after he had a MVP type season shows your baseball knowledge as well.
The Brewers and the Astros are the first teams ever with a losing record to qualify for the post-season (they both finished at 29-31.)
The 1973 Mets had the worst record ever for a team to make it to the World Series (82-79 with 1 Rain-out.)
The 2006 Cardinals had the worst record ever for a team to win the World Series (83-78 with 1 Rain-out.)