Why didn’t they just put Kukulcán in the title?

Regardless, the round style temple is fascinating. That means a similar shared tradition with Quetzalcoatl-Ehecatl worship, where the construction of the temples emphasized airflow.

What I want to know is, does this mean this practice started in the area and is a development from earlier “Feathered Serpent” worship of “Olmecs” or a tradition from outside the region such as influence from Teotihuacan.