Agree, but the effect is temporary.
The issue is the geometry meeting. The panels are perpendicular to the purlins, which incrementally rotate ever so slightly. But are interrupted by the beams so you never see them clash. At the end panels, they havent been trimmed yet, so you are seeing the two angles meet. Once that's cut back and interrupted by the beam (you can alreadynsee this on the weat to a point), it will look right.
As for the very outside ends, not sure tbh, will wait and see. I imagine they'll be trimmed and covered with a capping piece and look neat.
The kalzip sheets turning 90 degrees tho, be surprised if that is temporary. They seem to be sorting the outer edges out so that may well stay like that. Might bother some people's ocd, but whem finished it should still be neat hopefully.
Edit. The south stand roof kalzip changes orientation at the same point. Although it is technically 'temporary'.