Ok, a quick, late-night update. I opened the same page in Google Chrome, and it shows December 16, 2017. I am going to hope that this is the correct date. With this knowledge, I have enabled Kabuto Live. FWIW, I was using Apple's Safari Browser 11.0.1 on a 2012 MacBook Pro, running macOS 10.13.1 .
With that, I believe this solves the problem.