This might be a personal preference thing, but in every single example photo on that page, I significantly prefer the colours in the "standard zoom" version of the photo. I wonder if they can figure out how to do this fusion without losing that beautiful contrast the zoom lens brings to the table?

That's really interesting - the colour match attempts to find the best match between the two lens outputs, which frequently results in them 'meeting in the middle'. You can then manually adjust the output of each lens within the app's editing interface. I'll have a think about the weighting of the colour match.