I loved some on the points that they try to make, especially based upon their ignorance. Starting their qualifications,

Though I've principally used Java for the last 10 years or so, and C/C++ for five years preceding that, I have a basic familiarity with Python, having written a few utilities here and there with it.

What about Python's other dynamic feature, runtime code modification. Can it result in a reduction in code volume of 80 to 90 percent? I find this impossible to assess, as I have insufficient familiarity with self-modifying code. But I might mention that this lack of experience is quite intentional. Even when I find myself using a language that permits runtime code modification, it is a feature I am loathe to use for it seems to me to hold great potential for producing a code base that is hard to understand, and therefore difficult to debug and maintain. Additionally, there is significant cognitive complexity that goes along with dynamically modifying code, not unlike the intrinsic difficulty that accompanies multi-threaded code. In my view, this level of complexity is to be avoided if possible.

Translation: I have not used it, don't understand it, and take pride my ignorance because it sounds HARD!

Not much substance at all.