It does, but does anyone realistically remember how Billie got the record?
All that's remembered is she is the record holder.
More pertinently, does anyone at all remember who she beat to get it?
Nothing is forever, at the moment Amanda looks like getting the record and holding it for some time.
But inevitably someone will beat her, and when that happens, Amanda will also be largely forgotten.
Well in fairness Bille got the record in 1938, so I'm not sure there's many around that would remember her doing so, you're also comparing a time well before social media, 24hr news et al.
Again, it depends who's doing the remembering and the connection they feel and, quite simply, how memorable it was. Derek Redmond and his father are well remembered for what they did in the semi final of the 1992 Olympic 400m, how many remember that it was Quincy Watts of the USA that won the gold in the final (yes I did have to look that up). Or to draw from athletics again, who remembers the winner of the Zola Budd vs Mary Decker race?
For me Kajsas effort, which almost certainly will not be the overall record, is and will be far more memorable than Amandas.