A lot of web "design" is about how it looks rather than how usable it is. At no point any stakeholder stops and actually uses the product, they scroll up and down, enjoy the pointless "scroll in" animations and say "kewl". Never mind the text that is at 50% opacity until you scroll to the exact intended point, because nobody actually attempted to read it.

The biggest problem is that it's good if your images are all landscape or all portrait, but not when mixed.