Whilst that could be true id call BS because why would these "firms" be in with the friends and family section behind the dug out.
The away fans were all penned in the other side of the ground. These were just players families and former players etc.
So it doesn't ring true.
In this instance it might be revenge. Or perhaps it’s just the proximity of the Ultras to the WH family enclosure that decided where the battle would be.