As fun and crazy as the series premiere is before those last few moments, it’s not hard to understand the need was felt to really hook viewers by bringing the daughter twist in earlier.
That’s definitely the mature route to take in this case, especially for one-half of the original creator team.
Grant Morrison could have very well fought to keep the story flowing in the same way the comics did, but this is one of those cases where the network notes weren’t altogether ridiculous or ludicrously demanding.
Sure, there’s less time for the story to build up to make that information all the more effective, but it was still probably the best way to cap the episode and ensure the most repeat viewers at the same time.