You seem to think that I should be absolutely shocked that the government 'acted unlawfully' in proscribing a group that has committed acts of terrorism as a terrorist organisation.
What actually seems to be the issue is where the line of 'an acceptable amount of terrorism for an organisation to commit' is, not that this organisation was entirely innocent of terrorism and had been unfairly maligned by the government.
We are not in a position of 'government unlawfully bans group that disagrees with them', we are in a position of 'government bans group that didn't commit enough terrorism to meet an artificial definition'.
People going 'oh next time it might be a group you support' - I don't support any groups that commit any acts of terrorism, so why should I be worried?
What does worry me is that this group haven't shown any remorse for their actions so now plan on continuing their actions, including acts of terrorism until they have met the threshold for proscription. Can you reassure me that that's not going to happen?