From my experience dealing with IBM, I can only imagine this was the result of 5 different consulting teams, assisted by 3 different outsourced development groups, which was delayed numerous times, then Watson was added, and then a re-org caused by layoffs, which finally resulted in a website that couldn't scroll and caused the CPU of my high-end laptop to scream...
Luckily, it's just blank without JS, so I was able to move on quickly.
I'm impressed with the number of people who think that JS on most people's webpages is a good idea. Or that any JS was necessary to announce this font. It wasn't and wasn't carried off well here (nothing for the no-JS crowd).
A far easier page to write up and one that would have looked better could have been done with nothing but HTML, CSS (demonstrating the font in real-world usage even), and perhaps some PNGs to show bitmaps of the font (useful for those who, wisely, don't load every font the page says to load).
https://github.com/IBM/plex has the free font.