Rephrasing slightly: The animations are playing slower than grogenaut's reading speed, and they are forced to wait for animations to complete before advancing. Faster animations, a way to control animation speed, or even a way to skip animations could make for a more comfortable user experience.
Granted, this animation hails from 2014, so the above might not be possible without significant effort.
I went through the animations and they’re not too slow. I guess if you’re trying to speed run through it then sure, but then why even go through it if you’re not trying to learn the protocol?
The first 8 animations just show text or one circle with an X or 8 in them. But I guess if it works for you then my experience is invalid. For me I gave up and just read a blog on it.