Er, no it doesn't. The Titan 767 was parked overnight, empty, when it was immobilised by the protestors, not taxying out onto a runway.
Details. If everyone is made aware of something (which is the whole point of protests), there’s no risk to life-and-limb, just a large amount of disruption while the protest is moved on. If you drove a truck covered in flashing lights onto a runway in an obvious manner in front of an aeroplane, then unfurled a “Justice for Cats!!” banner, it could hardly be described as dangerous, more like £$%^ing annoying...