I honestly think the opposite.

When I learned generators from Python the understanding of “a function that yields instead of returns” was very easy to grasp. And considering I already knew how functions worked & what their syntax was this was just an extra step (rather than starting from scratch). ECMAscript have taken a similar path to Python here.

This could also be because my mental model is they are just functions that have the ability to return to the stack at a later point in time, rather than “running to completion”.