At the end of the article csvkit is given an honourable mention. I’m a big fan and I’ve used it a lot in the past, but these days I’d say that xsv > csvkit for working with CSV files on the command-line.
I don't know how it compares to xsv, but you might be interested in Miller/mlr (http://johnkerl.org/miller/doc/index.html), I've used it because csvkit was too slow for what I needed to do and was pleasantly surprised by its features.
Totally agree on this. I've build heaps of production code using xsv. Far faster than csvkit and more features.