Thanks for the update
If something goes wrong and the company acknowledges it was their mistake (or a system failure or whatever), I expect the company to figure a way to make it right. For a place that is world-renowned for excellent customer service, I go expecting that "I will be taken care of by Disney" and that they will care about my vacation experience. The stories of pixie dust moments are legendary and heavily promoted by Disney as examples of amazing service. Every single customer service training/conference session I attend brings up Disney service at some point.
It is extremely disappointing to hear of situations like yours where you didn't receive the service you expected.
It would be different if Disney did not pride themselves on customer service. Then I would know not to expect it. For a customer, having your expectations met is critical. I used to feel like I could count on Disney to have my back. I don't anymore. Will this stop me from going? Not at this point since I still love the overall experience. But I don't trust them the way I used to. And that affects my perception of the park and if I had a travel situation where it is important everything go smoothly, I may choose to go somewhere else less complicated. And...I no longer rave about Disney customer service. Yes, there are many, many good moments...but there are also many bad moments and I just don't feel confident enough in Disney to rave the way I used to.