I feel like this mischaracterizes the blog. You seem to be taking this:
> People should spend less time learning DSA, more time learning testing.
And reading it as "More total time should be spent on learning testing than the total time spent learning DSA". That's one reading, another is that people are studying DSA too much, and testing too little. The ratio of total time can still be in favor of studying DSA more, but maybe instead of 10:1 it should be more like 8:1 or 5:1.
That's a fair point. But then the author makes a blatant and unrealistic generalization about how much time people spend on each of those. Between CS undergrads and introduction to programming bootcamps, the variance on that number is extreme.
> People should spend less time learning DSA, more time learning testing.
And reading it as "More total time should be spent on learning testing than the total time spent learning DSA". That's one reading, another is that people are studying DSA too much, and testing too little. The ratio of total time can still be in favor of studying DSA more, but maybe instead of 10:1 it should be more like 8:1 or 5:1.