Likewise, no body has time for this when picking through resumes, it's annoying enough as is, no need to make me wait 20 flashes and 5 minutes before I find out whether you do JS. It's also terrible UI design, as in, none, at least a TOC or some way to move through faster.
Maybe nobody has time for this but these days employers are looking for people who ACTUALLY know their stuff. And they will go through your GitHub and have you sit in front of interviewers asking you to code live in front of them.