If you work there, tell them to update their page, which is the source for the article. It says: 
Seating Capacity
 - 4,250 fixed seats (includes sky boxes)
 - 250 SRO’s (standing room only)
 - 4,500 capacity (can be decreased dependant upon event demands or facility configuration)
That page is a reliable source. You aren't. When the source changes, the article can change.