There isn't a snowball's chance in hell the JT30 configuration is only 8k less than 360.
Taylor Swift did the following with the same configuration as JT30
Taylor Swift
October 17, 2015
Arlington Texas
AT&T Stadium
Attendance: 62,630
Capacity: 62,630
Gross: $7,396,733
Shows: 1
Sellouts: 1
Average Ticket Price: $118.10
The 360 configuration can fit more than 70,000, but U2 set the capacity at 70,000 for that show. The 270 configuration can obviously fit far more than just 49,700 as seen with the Taylor Swift show at 62,630. So yes, the 360 show crushed the JT 30 show in terms of attendance.
This is not the only city where this is happening. Happened in Pittsburgh as well.