I love Epic, but even with the existing attractions operating at peak efficiency, park capacity is not great. Going back to Epic's construction, I and others were significantly concerned over it with attractions like Yoshi & Donkey Kong being way too low capacity for the demand they were expected to receive.
I'm all for innovative attractions, but there's also a need to have attractions that are far more consistent in operations and capacity so even when guests miss out on the innovative ones, you have backup experiences and guess feel fulfilled with their day.
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This is theoretical hourly capacity.
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This graph shows "peak efficiency" capacity on an 12-hour operating day with no weather related impacts. This also assumes that all shows take place without being cancelled, which Epic is unfortunately seeing 1-2 a day for Cirque/Untrainable.
FYI - I excluded Animal Kingdom's various exhibits and walkthroughs (like Maharaj and Gorilla Falls) to have a somewhat fair comparison. Also excluded parades and nighttime shows since not all parks feature one.
I don't want to speak for anyone else, but I think this is why some of us on here have brought up the idea of wanting more "traditional" dark rides at the Universal parks. Less likely to see downtime and weather related shutdowns, while offering something UOR doesn't have much of yet.