(Sorry to beat a dead horse) I'm new and this is my first post, so I'll keep it short. Information in the original post:
Based on the descriptor here and to be literal, a hypoglycemic seizure really isn't status epilepticus. This patient, although has a BGL of "<4 mmol/L" (72 g/dL) , I would not expect to seize unless they were significantly hypoglycemic, a BGL of <2 mmol/L (36g/dL). If they are mildly hypoglycemic, that isn't the problem so then treat with a benzo.
If they are moderate-severely hypoglycemic and if I have no history or indication that the patient is IDDM, I'll try to treat both problems concurrently. I'll administer both a benzo and the glucagon IM.
As for being unable to start an IV on a patient in a status, generalized seizure: Since when? I have treated many-a-status seizure and have never had to administer anything IM or rectally in a non-peds patient. Why, because I have always been able to get a line, typically on the first attempt.