I agree with the principle of this blogpost, though IMHO this was covered better and with better examples here: https://lbrito1.github.io/blog/2017/03/dont-obsess-over-code...
I also think the title of "don't obsess" covers the intent better. In other words, it's perfectly OK to write DRY code, but don't obsess over making all code DRY all the time at the expense of readability.