>At that point it still wouldn't be equivalent to pirating, IMO, but rather more like using DeCSS to circumvent DVD scrambling.
You're not paying. This seems more like borrowing a DVD from a library or friend, then ripping it using such software and watching it after you return it.
It's not, the creators (the website) directly gave it to me. I'm not borrowing it from someone that paid. My browser sent them a GET and they replied with 200 OK and some content. Whether I paid or not is irrelevant; they voluntarily gave it to me.
At that point it still wouldn't be equivalent to pirating, IMO, but rather more like using DeCSS to circumvent DVD scrambling.