One thing that the author brings up is that (at least in 2005) Lisp had a very "roll-your-own" culture in which a programmer was expected to write most of the c

One thing that the author brings up is that (at least in 2005) Lisp had a very "roll-your-own" culture in which a programmer was expected to write most of the code they use, which is alien to the workflow of most programmers in the 21st century. But starting around 2010, Quicklisp (a module system for Common Lisp) began to gain traction, and while it has fewer packages than say, Python, the principle of bringing in modules written by others to avoid reinventing the wheel is pretty much the same these days in Common Lisp as in other languages.