The author repeatedly makes the case that people can handle more complexity when using familiar tools and that in many cases this can outweigh the costs of using familiar tools for tasks they’re poorly suited for. I completely agree!

It’s still a bit disappointing that there wasn’t any mention or consideration for becoming familiar with more tools as a solution.

You don’t need to be familiar with everything, but to extend the author’s metaphor it’s better to have a variety of tools in your toolbox than to be a one-trick pony.