The more I look at it, the more I hope they fix the roof design. Unfortunately, I doubt that it will happen. The flat parts are what hold the passenger boarding bridges together. They also create clerestory windows in the shape of a wave, which of course is in keeping with the overall scheme. Then there's the cost differential. I don't know what their plans are moving forward and if further changes are possible without significantly driving up the cost.
Here's an example of a 'wavy' roof canopy with a seamless contour and skylights (Madrid Barajas). This is one of the few airport terminals in the world that have a truly unique architectural aesthetic. As much as I love Heathrow's Terminal 5, there's something about it that feels standard.
https://www.ucm.es/data/cont/docs/35...arajas%202.jpg