Now they have no idea where they'll sit before hand, and most people would rather do whatever they want than have to stand in line for 30-45 minutes before they normally would and still not be guaranteed a good seat.
Can we stop saying people will have to stand in line? It is totally not true. You will have to stand in the stadium, but not in a line unless you get to the stadium more than 90 minutes before kickoff to try to get front couple rows.
It's General Admission. When they open doors 90 mins before kick, everyone gets in. Once that 10 minute rush is over, there won't be a line that is any different than the congestion line that has always existed right before kickoff.