Seems a bit much to label them as terrorist but they've done a lot of vandalism on various companies. Seems their MO is to find a target rationalize how it's somehow tangentially associated with Israel and then break some shit.
They crossed a line when they did this to a military base and vandalized some RAF planes. They had some weirdo rationalization for this, but forgot to rationalize how this kind of thing will help anyone in Gaza. They seem to be just breaking things to get attention for themselves.