I wholeheartedly agree. I myself was taught when taking the basic class, that we as EMTs or Medics do not diagnose in the field, and we were actually made to repeat this at some length. After getting my medic certification, you can't help but realize that you HAVE to make a diagnosis in the field, whether you're a basic or a medic, you HAVE to know what your patient needs, whether they truly need ALS, or whether they truly need that breathing treatment.
The unfortunate thing is that Basics are still being taught this around here!! I make it a point however whenever I'm teaching them, in the back of the bus that is or during training sessions, that all that is basically B.S. and that we do in fact diagnose, and not to be afraid to put 2 and 2 together.
Where I primarily practice, so many people are afraid of change, but I guess that's how it is most places, I wouldn't know I have very little experience in different regions. It's like Dust said, get on board with the future or get out altogether!:-)