I understand what the author is stating, but I just feel like this is from inexperience with R and ignoring the vast amount of packages available within it that are specifically targeted at data science. There are some valid issues and criticisms of R, but I think this article only focuses on the application of R in a single context. A significant portion of data science is about cleaning the data and an entire suite of packages known as tidyverse solves these problems (for me anyways) while also being very simple and easy to understand. I mean tidyverse supports piping, which is exactly what this article is saying to use.
Obviously your mileage may vary, but this post irks me the wrong way.