Uhh I think "journal" is a little generous (if we compare to actual papers/journals), even if that is the term Apple chooses to use. This is a well-written scientific article (maybe short paper, but not a regular-length paper) published on Apple's Machine Learning-focused blog.

My point isn't to be nitpicky. I just think that the truth is that this article falls somewhere an accessible digest article (e.g., Ars Technica) and an actual paper (e.g., a publication in NeurIPS or EMNLP).