The article points this out? It describes how this person was outside of the mainstream of a particular time & place, which was noted for being overly restrictive.
Yes, and it makes the implication that it was because of this she wasn’t more famous. It seems more likely that her ideas just weren’t that great.
Another great example is later in the article, where pregnancy is held to refute Cartesian skepticism. Somehow, we are expected to accept that a strong feeling something is true is the same thing as something being true. I am not a Cartesian by any means, but obviously Descartes anticipated this line of argument: this sort of thing is taken care of by his “evil demon” interfering with our feelings and sense perceptions. Even more broadly, we don’t accept this style of argument in general: the testimony of those who have experienced God on acid trips is not taken as confirmation of his existence.
The subject of the article just doesn’t seem to have said much novel or interesting, but the author seems insistent that she deserved more attention anyway, and the only explanation is some sort of deliberate oppression as with the BBC example for malicious reasons. (Which itself is overstated: they would have disdained Nietzsche saying the same thing.)