they do not get it right 99% of the time, and no, the best team does not always win. If you are one of the sickest teams in baseball your win percentage MIGHT be in the .600's at the end of the season. That creates heavy swing dynamics. Additionally in a short series like the divisional you don't have to go deep with your starting pitching, so a team with crappier pitching is on a more even footing, whereas in a longer series the weakness in your rotation will manifest itself more.
You are basically arguing for additional error to be introduce into the game. You want people that actually did the correct play (i.e. not swing at an obvious ball) and be punished for it. I find this to be completely irrational. It's stupid.
Let the umpires do their jobs without forcing them to be paralyzed to make a call like the NFL. They are the best in the business, and they sometimes make a mistake. That's LIFE.
To beef up the ability to make calls, baseball adds extra umpires on the foul lines in the playoffs. Last year in the 'playoff' between the Cards and the Braves. On a pop up to shallow left field 'infield fly rule' was called by the umpire on the left field line. During a normal game, there would be no umpire in left field and the 3rd base umpire would make that call, and from his perspective I highly doubt he would have made an IFR call. It had an effect on the outcome.
The GAME is just fine. It doesn't need to be computerized.
The best story in baseball to come along in ages that showed the human side of the game was over a HUGE blown call.
On June 2, 2010, umpire James Joyce made an incorrect call, as the first base umpire, which cost Armando Galarraga then of the Tigers a perfect game. Joyce tearfully spoke with the media following the game and admitted he made a mistake: "I just cost the kid a perfect game". Joyce and Galarraga received praise throughout the sports world for the manner in which they handled the situation; reflecting an earlier ESPN poll, players such as Mariano Rivera spoke on the record about Joyce's superb career of umpiring.
In 2011, Joyce, Galarraga, and author Daniel Paisner collaborated on a book based on the game, Nobody's Perfect: Two Men, One Call, and a Game for Baseball History.
The next day, Galarraga handed in the lineup card...