Yes, FET should be part of the standard cirriculum.
How can FET be a part of any curriculum when there is no coherent FE model to teach?
There is a dynamic and growing body of work available but the main objective is to put in and keep the concept and data into the curriculum.
When someone is able to produce a coherent FE model, then you might have a chance of having the concept included in someone's curriculum. Until then, I don't see how any teacher could justify including FET in any serious curriculum except as a "what if" type thought experiment.