It doesn't say if it was a pharmacist who gave the shots, but one of my daughters is a pharmacy tech at Walgreens and they 'trained' techs to give covid shots. (so I assume they're using them to give regular flu shots as well).

These are not nurses. They have no additional training. And while there are plenty of incompetent nurses, the concept of triple checking (patient, med, dose, route) is beaten into us so strongly you'd have to be a vegetable to not carry that safety into the field.