I don't think thats true, he references programming in python in there, but he uses the tools programmers generally use (on unix based systems) to program to more sharply contrast it with what the user might expect based on software that they use
> but the command line is no longer the most efficient way of doing everything
I agree with you, but the fact that most of the most gifted programmers I know usually gravitate towards some truly esoteric tools because of the complete control it affords them, negatively (sadly) impacts the rest of the programmers that look up to them