I think he pulled the trigger too early on that article.
The inerters sit between the suspension and the chassis.
Penske has shocks with those inerters built right in.
I called 'em and chatted for a bit with their sports-car tech, he said they use 'em on Indycar and other car stuff where it's legal, Pro Stock drag cars, some other 4-wheeler thing I forgot.
He had a recollection that moto guys tried 'em, but the different feel was an issue, but he wasn't sure exactly.
I'll talk with their moto tech guy, see if there's any being used on bikes.
Not super relevant to the Salad Box, just piqued my interest.