Have you ever noticed that at the end of "A Whole New World", Aladdin and Jasmine are at the Forbidden Palace with fireworks going off. What if it was the same night Mulan saved China. ----I BELIEVE IT IS!
The beauty about Ursula is that she held up her part of the bargain, gave Ariel 3 days to kiss the Prince. Nowhere did Ursula say she could not interfere. It reflects how real life contracts work... Student loans for example.