You’re confusing two different things. The people in this article stood trial over an incident in Wilton where a building was broken into, property damaged and a police officer severely assaulted. There were two linked trials, and in February one of them resulted in a jury unable to come to a verdict on certain of the charges. The CPS elected to retry the defendants on those charges, and that’s the verdict just in.

You’re confusing that with the unlawful (not illegal) proscription of Palestine Action, which resulted in many arrests of non-violent protestors. There is an appeal pending on the status of the proscription.