You talk about deskilling. But are these skills even relevant to the ultimate goal of producing a web page according to the design specification? Should we have been worried about the "deskilling" that happened when we transitioned from punch cards to high level languages?
Yes they are relevant. From the article, skills like "accessibility, progressive enhancement, network performance, interface design and user testing" are relevant to the ultimate goal of producing a web page. Front-end development is not merely implementing a design specification. The skills listed are relevant to transformkng the design specification into a web site/app that runs on the many devices and platforms and is used by a variety of users.
The design specification can include everything you mentioned. The article argues that "JavaScript frameworks have deskilled frontend development in the last decade." That's what I can't agree with. We need the simplest way to achieve the desired outcome. Using higher-level means to do that doesn't mean deskilling.
