The points you make about commentators and the like are essentially irrelevant, as they're not an extension of her. The last time I checked, she and the members of ESPN, Evert, McEnroe etc. are not actually joined at the hip, and are in fact separate individuals. If commentators and analysts make outlandish predictions about her future, I don't see why that should be held against or associated with her. And I also don't see why that is so difficult to understand. It's not like she's preparing ready made scripts for the networks, demanding that they devote an alloted amount of time to her etc.
And how many of those 'numerous higher ranked American players' that you speak of, other than Serena who didn't win any more majors by the time Gauff came to the fore, all noticeably older than her no less, have achieved as much as she has done already? It seems like the decision to talk about and cover her was well and truly worth it.
And you're last paragraph is all over the place and way off the mark. Saying that anyone in any field achieving more than 99% of their aspiring peers 'means nothing' shows a comical lack of perspective. Did you actually read that back before you typed it? That's definitely one of the most 'bizarre' comments I've read on this forum for a while.
We're talking about a sport in the vast majority of players lose money, and can only dream of 'merely' establishing themselves at WTA (or ATP) tour level, with more than 1,400 players currently listed in the WTA rankings. And we're also talking about the youngest player in the WTA top 10 and 4th youngest in the WTA top 50 currently. A grand slam title (and thus a guaranteed place in the history books) plus other big titles already banked at this stage, with the potential and plenty of time to add to that collection in the future, is extremely good going. Again that shouldn't be difficult to understand. A lot of supremely talented players don't win majors, and some like Muchova (sadly as I like her) struggle to win anything bigger than Seoul.