I honestly prefer her as a foil to Cass or Tim than as her own character. A few pointers here and there does not training make, and Steph should need the same assload that the rest of the Batclan got, or the emotional intelligence that Babs and Tim have shown to have. She doesn't.
Being a Gotham crimefighter isn't something everyone can be, and I think Steph worked best to show that. Jason too, to a different degree.