I've been the car driver who nearly made jam out of the cyclist in the last panel. I've also been the cyclist hit by a car which was driving in the cycle lane.
Bad road users are everywhere and they use all sorts of transportation. Let's stop with the division and generalisation.
If I'm understanding correctly, this is saying that isolation between different clients on the same VLAN is broken? But this attack doesn't break isolation between VLANs?
So the major issue is if you've got a guest network on the same VLAN as your main network