Hopefully these idiots are sent straight to prison and the drones are shot down because it's what they deserve. This is basically terrorism as they're endangering other peoples lives and disrupting their travel plans.
What these scumbags need to realise is that there are reasons why people travel everyday and it's not just holidays and leisure-related stuff, there are people who NEED to fly due to reasons such as business, medical treatment, to see elderly/sick/dying relatives etc.
If my flight was cancelled just because of a bunch of brainwashed tree-hugging fools flying toy drones around the airport, i'd be disgusted and pissed off and I'm sure that any other rational and civilised human being would.
All in all, this "peaceful protest" is just pathetic and puerile and the imbecile protesters involved in this idiocy deserve to be punished severely.