Seems like a paper from a young student who needs to get his 3000 wordcount.
It just bloats the article and makes it difficult to get the information out of it.
Most humans remember personal narratives far more efficiently than they parse data tables. Humans who don't operate like this are very much an exception.
So this is a communication technique - part of rhetoric, in fact. And communicating with median readers is what journalists are paid to do.
Journalist aren't just paid to communicate with median readers, but with all readers. If close to all articles have the same format some readers will be put off by that.
I'm not arguing for removing all personal stories. Just for more of a balance.