Any help on making text better is appreciated. Blogspam... May be, but consider that PDF were published a long time ago and not that many Web people were interested until there came a way to use it in everyday practice.
"focus on more extensive automated testing, focus on more profiling, and focus on general software engineering principles like single-responsibility and DRY" - this is exactly what was suggested in article. Except may be DRY which is more about design.