Dont know what to think about all these graphs.
I’m a web-dev since 2004 and I don’t know even 5% of all of these stuffs and I never need them. I use to work with huge company, on big projects and I really doubt it’s necessary to know all that stuff.
Actually, I always did the opposite : Do one thing but do it well !
I never touch the html, never touch the css, never touch the php, never use github and guess what ? I never search a job neither ! Never need to, I just try to do my best in the project I’m working on. That’s all what you need — in my opinion -