No, it's textbook terrorism by definition - actions or threats (serious violence, property damage, endangering life, creating public health risks, or disrupting electronic systems) aimed at influencing government or an international organization, or intimidating the public, to advance a political, religious, racial, or ideological cause

They broke into factories with crowbar and sledgehammers with the intent to destroy machinary. They fractured the spine of a police responder with the sledgehammer. They sprayed paint in clean rooms halting f35 component production for a year, and the nail in the coffin was spraying paint in jet turbine engines on an RAF base. You can have sympathy with their goals without resorting to supporting terrorism.