I did not write anything about author having/not having technical skills. You're reading it between lines, and in my opinion it shows (again: for me) kind of insecurity. I suspect that emphasis of 'being competitive for the positions we were hired' also shows it. But it's my opinion.

What I wrote (and what I stand for) is that it is good to know that this article was written by 'content marketer' - meaning person with a SPECIFIC agenda for writing that article (by definition of 'content marketing' itself).

Thats always good to know. If anybody praises something I always prefer to know if there is something (e.g. salary?) which may created/influenced/PAID such opinion. We (hackernews) derided it on many ocassions. To give different example: I personally ask all bankers if they have commission on me (for specific recommended product), or not. And I consider it healthy to know and ask.

To make it clear, I think that there is a good content marketing, and that there is a a bad content marketing. The bad for example can be seen easily with searching google for "blog 10 best sleeeping bags" and similar.