Think you're overthinking this, bud. Stuff happens in a series. Dodgers were awesome and the Brewers were underdogs, but it could have gone the other way. I don't think it's a referendum on the whole system.
I'd love a salary cap, but like I said, I would worry that it comes with concessions that harm small market teams like the Brewers. The players proposal is trying to head that off by opening with significant boosts to small markets. I think it puts the owners on their heals a bit.