This is actually a big deal. They’ve been proscribed as terrorists in the same way as ISIS, Hezbollah, Atomwaffen etc.
They are a direct action protest group, and they are criminals (at least the members that vandalised property) but they aren’t terrorists. And now, under UK law, expressing support for them is an offence. This is a huge misuse of terrorism legislation. 27 people were arrested yesterday for recording their support for Palestine Action.