Geez, that's terrible!
I'd have to fault the medic primarily but, an EMT should recognize when ALS is needed. Of course, the EMT could have preformed O2 therapy, vitals, A&O, etc. But in all, I suppose you could debate where the blame lies. It sounds like laziness, complacency, and incompetence. There's no room for laziness in EMS and in my opinion, aside from cardiac arrest, a lot of providers I've met have no interest and show only disdain for medical emergencies. Everyone wants to see an MVC or a stabbing. You can't choose which calls you receive.