The more likely answer is that the initial demand for building Standard strategies with Nowhere to Run has, more or less, been satiated
Like Vivi, Nadu had an ability that could be activated for free (thanks to the free equip cost of Shuko), provided quick access to mana, and was easily abusable
I even narrowed the scope of this list to include only cards that physically draw more cards rather than just providing card advantage such as a Bloodbraid Elf
This 3 mana rock hasn't been amazing in any deck I've played it in, thus far, but as it turns out having more than a third of your list be MV1 ensures success when it pops
More and more in-person tournaments came back last year, and with things like the Regional Championship system in full effect, now is a better time than ever
This is most prominently represented by Santa's sleigh pulled by the reindeer, but also traditional sleigh rides that normal people can use too