Every team that wins a championship has some random good luck along the way. It's impossible not to.
After attending Game 5 in 2012 and then watching the Nationals come into every year 2013 - 2018 as preseason favorites to win the World Series, I was more than happy to take some dumb luck in 2019.
Wasn't it Strasburg who said "why can't this be our year?"
Baseball playoffs are a crapshoot, all a good GM can do is build a team capable of getting to the playoffs, and all a good manager can do is hope that they make the right moves and that the moves they do make don't blow up in their face.