Good point.

But the fat that they do not disclose they work at the same non-profit that has a goals that is much related to the topic they address, this does not seem "transparent science-y" to me.

I'd argue that in a time when everybody has a LinkedIn account, putting your name on the article is a form of disclosure.

Then acting so "scientific", and "we're just some mommies", just to find out that they work for the same organisation. Yr not just some mommies, your colleagues, and it would not surprise me your got paid to write this.