At the end of the day hours being cut is always far from ideal, but they are ultimately a business, if the numbers to justify 7pm closures are not visiting then they obviously have to address this. Thorpe have always been good at extending hours when needed and ive no doubt if the park is busy enough they will extend back to 7pm when its needed.
Also gives us an extra hour of Summer Night queues on Fridays and Saturdays!