It's not impossible to be dynamic either. Renzo did it well at Aurora Place in Sydney:To me, because of the curves, these look like a couple of sheets flapping in the wind. I want something that looks like it's resisting the wind, cutting into the sky, so to speak. The geometric tops of the CIBC Square towers look like they are accomplishing that effect.
These towers actually are resisting the wind, so I prefer that they looked like they were. That would be bolder, and actually impressive.