Tbf, part of the experience is the audio and proximity to the fireworks.
It sounds to me like OP is still in the parks so I think he might be able to give it another shot.
Fast Passes aren't some sort of magic (band) cure all and tbh they really add up to jack. Remember that thread in the hotels section about OP being offered FPs when Disney told him he had to switch hotels? Yeah, everyone said the FP "compensation" for Disney's screw up was insulting and a joke and that he should fight for appropriate compensation.
Everyone's ganging up on OP when he was told by a cast member the party wasn't that night and acting like he's being unreasonably angry. Yes, I get she screwed up and that he's human, and I would have just gotten a calander online myself to confirm and not even bothered with a CM, but to chastize him (not so you really. This is meant to be a general post for the thread) is a stupid response as well. He is not being entitled, is being pretty reasonable and it would cost Disney literally nothing to let his family through the gates during MNSSHP. The only reason he didn't get tickets when he planned his trip around a CMs screw up is because it opens the flood gates for "ow I tripped on a candy corn can I get tickets", not because he's "undeserving" or whatever.
I don't know what can reasonably done for the OP but the lot of you saying crap like "I'm glad he's not coming back" and mocking him and saying he's being entitled is intellectually insulting.