possibly not a very accurate understanding
gods couldn't have need wheel for essence when gods and engwithan wheel first build the plan was give gods giant body
so they are likely can always draw essence from eora the way eothas or wizard and chanter did
and machine of ukaizo are only a crucial point of engwithan wheel
luminous adra are clearly still part of it
the concept of wheel are of couse likely to be originally ancient engwithan myth about reincarnation
but engwithan animancy give them the ability to create new system base on their design and call it wheel are only natural