I get the type of customers that need this sort of site, it's artsy, unique and all, but to be honest this could be the poster child for "UX don'ts"
I'm not a huge fan of this particular design but I do appreciate the effort they put into showcasing GSAP's capabilities. The web could use more interactivity and motion. The death of Flash and rise of mobile-first design seems to have led to websites where the only thing moving is the text/image content that's displaced once the ads on the page finish loading.