> but why didn't the original article do it?
Local style guide says not to capitalise headlines, presumably.
Though you are right, the general rule here is not to change headlines and that should probably apply to style as well as wording. Looking at other posts on the main list there seems to be a mix as the original styles (sentence cap, all words capitalised, all but articles, …) have been kept.
You could argue that Microsoft’s claim on common words (Teams, Windows) is the problem here.
When a common word is a product / brand, how do you use that word in a title without bringing up associations with that product / brand?
Isn't the guidelines to submit the title as-is, no editorializing?