Disagree. It's not a website, but a portfolio. Agencies and designers have to show off what they can do and a static site with screenshots won't cut it. I'm personally very impressed.
All the more reason to have a good user experience. How likely am I to work with an agency that can't even show me their work in a functional way? Scroll is broken, navigations are broken, weird looping behavior. It feels like an old Dreamweaver site.
Agree that it's a generally different use case, but I'm trying to click through to examples of work and I went through three or four times to what seemed a blank page, returned to the homepage, and started over, before figuring out how to access them.
There are still slight UX requirements even for showy contexts like this.
It featured prominently at the beginning of the video stream.