Since the 2nd WC was implemented, here are the World Series champions:
Giants: 94-68
Red Sox: 97-65
Giants: 88-74
Royals: 95-67
Cubs: 103-58
Astros: 101-61
Red Sox: 108-54
Nationals: 93-69
The lowest win total for any team who made the playoffs during that stretch was 85 by the Twins in 2017, who then got disposed of easily by the Yankees in the WC game. In the year the Giants won with 88 wins, MadBum had to pitch out of his mind for that to happen.
The playoffs in baseball being a crapshoot is true, but it's not "every team that makes it has an equal chance". It just means teams with the best record or most talent don't always win. It doesn't mean bad teams are going to come in, get hot, and then steamroll through everyone. I think the round with the most risk in the new format is the WC round. I think we'll see the most upsets in that round. But beyond that? Like I said, over a 10 year span you might see a miracle team win it, but I'd be very surprised if that's the norm, or even close to it.