‘They started it’ is not an excuse for either sets of fans.
I’ve never been to Catalan so can’t comment on their home support however I have been to Wilderspool and the Halliwell many times. In fact one of my earliest RL memories was at Main Rd when Joe Lydon kicked that drop goal. At all games against Warrington I’ve had issues with their supporters that I’ve not had anywhere else. I’m not in the least surprised an incident like this involves them.
To stress this is only a minority, the majority including many posters on here are sensible well behaved supporters.
Unfortunately this has happened, RL now needs to deal with it. I hope they do so very harshly to send a message out to the minority of idiots at all clubs who fancy a bit of it.