Is the issue that all vibe-coded sites look the same, or that everyone uses the same Bootstrap or Material components? This site does indeed look like every other vibe-coded site, but so does any site using the same component libraries.
For some reason they gravitate to this style (and chern out reams of slop CSS to get there).
They really don't like the current trend of large hero graphics across the page so, as others have said, it feels like they're stuck in the last decade.
On the plus site, maybe websites will get faster when they're not weighted down with megabytes of component and JS libraries.