It's more that the pyro was repeatedly targeted at Talbot that's causing the issue.
I'm not a fan of pyro but it can have its place if done properly. Normally in this fixture, there would be a display from both groups of fans, the pyro would be thrown on the pitch, it would fizzle out, the game would then start and that would be the end of the matter.
But on Friday an element from your side continued to throw stuff, including pyro onto the pitch till well afterwards. It looked like some of your fans went across to reason with them to stop and thats when the boxing started and yer man was arrested.
It seemed to me like a small element turned up and were hell bent on causing as much bother as possible. It's a real shame for the rest of your fans as your allocation will be severely slashed and you are going to be subjected to far more robust security next time.