I do realise to a certain point, because of everything they've had to do, and how long it's taken, to expand just one stand. However, I am no structural architect.
Are you saying that the shape of the ends of the roof are integral to the overall stability of the stadium? Surely the curve of the roof could have been flattened slightly to lead into the roof of the new stand? This would have also given us more space inside the stadium to fill the corners with more seating when we reach that stage. Just looks a bit daft is all.