My understanding is that this is the way fermions are treated in any modern theory of quantum gravity, and not specific to LQG?
“Creating” is a vague(r) term, do you mean “quantization”? Afaik the open-loop geometry of fermions is something any quantization scheme has to start with, the details are how one includes gravity, so without more details, one wouldnt be able to tell how LQG is different from string theory :)