I would believe it. She actually liked Ken more than Barbie, because she thought he was funnier. And I have been seeing a lot more memes of Ken and how based he is even in more normie-aligned areas. It almost certainly got the Starship Troopers treatment, where their sincerely held beliefs are so outlandish and alien to the average person it comes off as a joke.

And since people think is a joke, they interact with it as a joke, which leaves them open to thinking maybe Ken was the one who was right.