It's up to you how you deal with stuff like this: you either turn everything in to a big drama or you just accept that these things are a part of life and can happen because the universe is a chaotic place. It's not like they lost their job or something; it's just a 2-day event.
If adding some perspective makes me "lacking empathy" then so be it, but I resent the accusation. We can also turn that around: the organisers are essentially being called a bunch of cruel racist assholes here, all without any real evidence. I bet that's fun after an honest mistake, miscommunication, or mismatch of expectations. If we want to talk empathy then no is coming off well here.
If adding some perspective makes me "lacking empathy" then so be it, but I resent the accusation. We can also turn that around: the organisers are essentially being called a bunch of cruel racist assholes here, all without any real evidence. I bet that's fun after an honest mistake, miscommunication, or mismatch of expectations. If we want to talk empathy then no is coming off well here.