Almost all of these are tools not skills.
"Designer" is a loaded term these days. It can mean many different things in many different environments. UI Designer, UX Designer, Front End Designer, Graphic Designer, Product Designer, etc...
More than a global list of technical skills, I think the context of the job in question is the real driver. Who you're working for, who the clients are, and how the company is structured as a whole.
Nice article! I personally think ability to code JS is going to become pretty important as a UX designer. As design tools start to export more production-ready code it's going to become more and more of the designer's responsibility to own that deliverable.
I highly recommend all UX designers pick up JS/React today. It's really not all that hard to learn and might become essential to the job in the coming years.
Matt, thanks for your comment! I completely agree with you. We analyzed about 1000 job specs, and even now they all reflect the high demand in technically-skilled designers. Most likely, this tendency will only grow. It's not obligatory for a designer to be a pro coder, but to stay competitive, they have to learn the basics.
BTW, we're going to perform the same research at the end of 2019 to compare the situation on the market :)
If the current designers aren't learning this, the new up and coming students are. The demand for technical designers is only going to grow with SPA Web Apps, AR/VR and AI.