A referee's job is never easy. Many rules seem to contradictory and there is lots of room for interpretation on almost all of them. Tony Tchani's second yellow card was one such example and Waking the Red, SB Nation's Toronto FC blog, actually thought referee David Gantar got the decision right and is worried that MLS's second guessing of him is only going to make things worse:
I actually feel bad for Gantar. He didn't have a great game by any means, but on this incident, in only his third MLS game, he followed the rules and now the league is coming down on him telling him he got it wrong. Where are referees supposed to draw the line? Tchani left the pitch and jumped on a railing to be able to hug some of the fans, how far would he have had to go for it to be considered worthy of a yellow card? That's something that supporters, players and coaches would probably never agree on, and maybe there should be a way for it to be flexible, but surely the league should be standing behind the refs they use when they're calling things by Fifa's, and thus the leagues book.