I've thinking this for a while, but Australian parks spend lots of money on very good rides that fully 300 people per hour can go on. I think with attendance where it was, even if ops were at their absolute best, it still would have been a shit show. The fact they couldn't get those second trains running (if they had them, they would have used them) just adds to the overall fuckery, but it isn't the cause. The cause is all rides max out at a fairly low capacity, and attendance was at levels not seen since Christmas holidays pre 2016, and even then only rarely. MW also doesn't have much excess capacity to eat up crowds. I'm glad that they're starting to figure out how to do WWF's new boats a bit better. That ride is the traditional people eater, and having that do Storm like numbers would be a disaster.
The thing that makes me confident that huge attendance is a large part of what happened rather than ops: elsewhere it was mentioned that Vortex had a 40min queue. If true, that is by far the longest queue that ride will have ever had. Even in summer holidays it rarely gets to 10mins. To get to 40mins says that the parks were beyond slammed, quite possibly one of the busiest days the parks have seen. The only thing you can really do is extend trade and put extra shows on, which you normally have to plan out in advance, and I have no doubt that even expecting a big day, theyd have been surprised by how busy it got. Aside from that it's capping attendance which I don't think is as straight forward as it would seem.
I just feel sorry for the guests in all this. I doubt many people were having a good time. Ops contributed, but there was simply no way with the numbers they got that there was any hope for a good day