I just want to chime in with something here regarding Guest expectation and the broken Indominus: there's two sides to that and they are both valid.
From an operations standpoint: yes, things break. Especially things, like others here have said, that are giant pieces of machinery operating around water that need to reset every 20 seconds. It's not the poor Team Member who put you on the ride's fault if that happens. You need to try and keep a level head when confronting someone about this. That said,
From a Guest standpoint: you're absolutely not in the wrong to feel disappointed and ask for your money's worth. If Universal Studios is advertising and hyping up a brand-new finale on opening weekend, you go through the trouble to obtain a one-day ticket and make the trip from, let's say, San Francisco just to see it, then yeah, you're allowed to be miffed. But you need to be smart about it and try to keep your composure. Theme Park CMs will do what they can as best they can if you approach them about things in a reasonable way and treat them with respect. During my time as a Disneyland Resort CM, I was certainly more empathetic and willing to go the extra mile for someone who was upset but calm than someone who would spit on me.
I had tickets for Universal Studios yesterday. So as you can probably guess, the reports of Indo going down the day before on Saturday broke my heart. My wife and I were driving up from San Diego for the sole reason of seeing it. I hardly got any sleep the night before because I was frankly worried that the trip would be meaningless. So what conclusion did I arrive at? Well, my plan was to arrive at opening and ask a Guest Relations CM if the Indominus would be working today. If not, I wasn't going to lose it, I was instead going to let them know that we would like to re-schedule our tickets for a later date. I did just that when I arrived and they told me the figure would for sure be working that day but that they were certainly giving off the vibe that they'd be willing to assist me with Plan B, given the situation I was in.
No harm, no foul. I don't want trouble, a refund or any kind of special treatment. I just want what they advertised and what I was paying for. They seemed willing to work with me because I understood it's the situation that sucks. Not the person in front of me.
But emotions can run high. It's understandable. Sometimes, people need to be able to vent. If the park were open to out of state Guests and a family had booked their one vacation for the year at Universal to see the new Indominus and it wasn't working as advertised, I think that family is allowed to express and claim disappointment and I think Universal should listen. They're not like me and able to "come back next weekend" when things are working again.
9 times out of 10, these kinds of people need someone to listen to them and their issue. That's all they need. They know nothing can be done but they need to express themselves and their disappointment. That should be encouraged if the situation calls for it (-and it does, at times). When those situations arise, those Guests and their complaints should be embraced, not shut down with facts about how complex a figure might be.