That sounds like your developer's problem, not the technology's problem.
Would you blame the language C++ if the developer was constantly compiling their own compiler from master every single day and spending hours upon hours dealing with that?
Given how difficult it can be to get past HR keyword filters when applying for a new job ("Oh we need a candidate with gulp experience, not grunt."), I can see how folks are fearful that they aren't using the "right" technologies. It's insanity.
It wasn't a single developer, it was a subset culture in the team of frontend developers. Those 2 examples were 2 different devs.
I don't really get your point though. Are suggesting that JS fragments and reinvents itself outside of the will of the general populace of frontend developers? How else could the problems in frontend dev arise if not from the culture created by the people?
Would you blame the language C++ if the developer was constantly compiling their own compiler from master every single day and spending hours upon hours dealing with that?