Because
a) the club isn't going t give them 3000 tickets
b) they don't have space for 3000
it was just an exmple of a way of getting a ticket to an away game, don't over think it
You can make a case for Barca who over 2 games this season have beaten Real 0-4 and 2-5 - the 5-2 win with their keeper sent of after 56 minutes. If they are on it they can blow anyone away.
With there goal, if you look at the position of there right back and how he is being allowed to run forward with no one on him it means that even if JDS does stop the initial break it's likely it becomes a 2 on 1 for him when that right back gets forward.