The football always annoyed me. The riot great I can understand, the SMGs are inexcusable. I always felt it was an excuse for the police to bill the club for their most expensive personnel.
There is also an ongoing debate about how policing costs of football matches are funded, given all police forces have seen huge cuts in budgets over the past few years. But equally football matches are much less violent than they used to be, and some question if the police tactics used today are the right approach (police seem to expect the worst, despite evidence suggesting their own tactics might be enabling bad behaviour).
[1] https://www.squirepattonboggs.com/en/insights/publications/2...