There is a difference between the models you're showing. As you suggested, the "Static Equivalent Circuit" you're referring to is a per-phase equivalent circuit in steady state based on motor slip. The circuit model in the demo model is in the DQ reference frame aligned with the rotor flux. Lastly, the PLECS machine model is actually implemented in the alpha-beta reference frame.
However, in the initialization script you can see the equivalent model parameters from the PLECS machine model to the DQ reference frame aligned with rotor flux equivalent model. For example, refer to the calculation of "Lsigma" and "RR" or "Rtot". You are correct in that Rfe is neglected in both cases.