No kidding. I was blown away by the notion there are working web devs who don't understand HTTP or basic networking. I feel like this advice could be summed up in one sentence, "Create at least two good full stack web applications for your portfolio, put them in your git, use different languages for each and a minimal IDE." The best advice to stand out has already been said here, soft skills that complement fundamental technical competence. Once you're in an interview understanding basic human empathy and having a strong and apparent capacity to work with a team has way more persuasion than bullet points on your resume.

I got the same impression. I'm still a student and have a decent grasp of all of these things from my prior internships. I thought that some of these skills were not standout, but rather mandatory in order to work full time as a web developer. I guess I have nothing to worry about.

If bootcamps trend upwards to overtake traditional 4 year curricula, then this list will absolutely make them stand out. Those courses are hyper-focused on essential OJT basics that they wouldn't have time to incorporate a lot of this information.