Theres a lot of excitement for sure. But in baseball anything can happen in one game. The pitcher could be having a bad day. The umpire could make the wrong call. In a best of five or three series, there’s always a chance to redeem yourself.
In a game that plays a 162 games a year, pinning the wildcard winner on just one game seems ludicrous.
Why not play best of three. If the team that won the first night is really the deserving winner, then perhaps it’ll only take a second night to determine who the true winner should be.