Not sure if joking… but that is a current “trend” seen all over on FB, especially in the Zwift Riders group. It’s a resurgence that also happened years ago, so everything old is new again.
This latest GCN vid showed up in my rocker group (2x yesterday). It’s the Hack I have told tons of people to try over the last 5+ years. Dead simple and a quick way to figure out if motion may be an improvement for people. It’s well short of some of the other advantages of a real rocker, but it can make a big change over pure rigid in mere minutes of work and super low cost to try.