It is an easy mistake to make. We look at native architecture or other responses to environmental challenges and mistakenly think that the solutions that evolved over the millennia are "quaint" and not driven by functionality.
If you approached an aeronautical engineer and asked them to estimate the "lift" of a wing profile that resembled a classic, Japanese temple and they would laugh you out of the room. It has negative lift. That is, the wind pushes DOWN on the structure.
Concave roofs are not easy to build. There are reasons why they evolved other than the fact that they would be photogenic some thousand years in the future.
Since the timber-frame construction is light-weight but strong in compression, it is able to resist typhoon winds when topped with the classic concave-sharp ridge-concave profile while modern, flatter roofs are lifted and ripped off buildings in high winds.
Fluid flowing over the top of a convex surface creates lift. Great pains are taken to prevent the fluid from "separating" from the surface and creating back-eddies.
Fluid flowing over the top of a concave surface creates negative lift. The sharp feature at the ridge of the Japanese temple is guaranteed to create separation.
Japanese engineering is not a new phenomena.