That’s entertaining but I just went a year back into that author’s posts and she never called them anything differently. Writing a lot about border immigration, ICE, and their facilities.
The implication never was that this particular journalist called them anything else. Just the current administration and the broader political culture. I don't think the "kids in cages" framing is as common ever since the election, but there are still some consistent voices calling it what it is.
Different people that are not actually invested in this cause are not putting energy into the migrant children internment and won't. They move on to the controversy du jour.
It is unproductive to shoehorn that observation into this article as if this article, or author or poster or community as a representation of the "Broader political culture" contribute to that observation. If it did, I would agree with you, and I felt the need to check.
OP's comment isn't about the author of this article but instead about the cultural narratives which resulted in this particular article to be brought to the front page of HN as opposed to another.
The CDC and WHO have both repeatedly said children have relatively low transmission rates. And yet this FUD article about COVID risk to these kids is what gets pushed to the top. It feels like only yesterday these facilities were literally being referred to as Nazi camps.
So low COVID risk front page. Nazi camps... basically vanished from our attention. This is not a commentary on the author of this article but the social consciousness that selected to promote this article.