I could nitpick the authors points, but honestly this article just boils down to "Design tools need more features!" which I generally agree with. We're living in nice times for design tools though - Figma/Sketch are leading the pack and moving extremely fast.
We're no longer in the dark ages of waiting 5+ years for Adobe to implement some basic feature (like being able to round corners on a rectangle). Well, I guess if you're for some reason using xD you're still waiting a comically long amount of time between significant releases, but that's your own fault.