I had a similar thought, I must admit. However, it's probably just a homage to WOT, not an actual story within its world. GRRM did something similar by naming a noble house the Jordayne's of the Tor (Jordan and his publishing house Tom Doherty)
Eferous discusses what we would call the "classics" -- i.e. Greek mythology -- when making a joke at the bar. If Spireworld were another WoT phase, that history would be long, long, long forgotten. In WoT the "Age of Legends" was/is the age directly following our Age, so Spireworld would have to be several ages after Randland, so 20 thousand years later? or more