If they don't tweak Showdown in 21, I'm not buying it.
Baseball is a game of RNG, and it's nonsensical to string RNG-contingent events together. There HAS to be a better way to make sure that you don't perfect-perfect yourself into a bunch of restarts.
Maybe they should give you a perk voucher for each showdown you complete that carries over to a restart? Maybe let us exchange extra players for perks and vice versa.
All I know is that I've grinned through all the Extreme moments and have 0 interest in lucking my way through a moment daisy chain with random players, perks, and outcomes without some sort of mitigation factor.