Oh gosh yes, absolutely. Honestly, despite my background in this "scene" my first thought was "Well that was asking for trouble having a party on land that is, at least, saturated with pain." How dare they flaunt their privilege, etc.
I don't know if Gazans were present (but I doubt; does their culture permit it?), but they would have been welcome +++++.
There's a short video here with the festival producers answering questions about the location. It's been used for many events such as a Genesis gig and no one had any doubts about the safety.
Here, they return to the site, where the "lost and found" section brings back reminders of the Holocaust. They bless the scene, and have set up a kind of survivors crisis centre to try and help people come to terms with the loss of friends, limbs, etc. At the end, they mention the dance track that had to be stopped when Hamas descended, and their ambition to fill another dance floor one day and pick up that track where it left off.
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