Hot PR tip for the person managing the social media account: If you're explaining, you're losing.
Everything in that statement prior to the last paragraph should never, ever be said publicly or privately to a paying customer.
They do not care about why the rides are closed, planned or not. They care about the fact that they've paid $110 to enter the park to watch HWSD2 while eating $20 chicken nuggets and possibly getting a ride on WWF, if it's open. They care about the disappointment they're experiencing for paying so much money to effectively enter an overpriced, extremely limited shopping mall.
Movie World's failures are not the customer's fault - even if scheduled maintenance is listed on the website, people expect the majority of rides to be open, not one ride for part of the day.
Acknowledge the unplanned stoppages and then direct people to guest services and tell them that you want to make it right. Don't say that guests are going to be 'well informed and an outcome achieved'. That's effectively code for 'Go F*** Yourself, no refunds'.
Just acknowledge the disappointment, acknowledge the unplanned stoppages, acknowledge that this is not how you want guests to experience the park and then direct them to guest services because you want the chance to make it right. That's it.
What guest services offer can be tailored to what the guests want, but don't blame the visitor because Movie World can't keep on top of ride maintenance enough to keep even ONE roller coaster operating. Right now, you're taking a bad situation and making it worse.