Well there are 3 divisions in the NL, so one Wild Card is necessary to have 4 teams and two series in the first round. Also, the 1st Wild Card team may very well be the second-best team in the league, better than the other two division winners. My only point about the second Wild Card team is when there is a large gap between the two Wild Card teams, it's a bit unfair. I get why they do it (to keep more interest in the September games), but there's too much at stake for it to come down to a single game that determines who's in and who's out. If the two Wild Card teams are close in final record, then a single game between the two is fair. I only have a problem with it if the gap is large.