This is NOT a bug. Currently the ALS training is ONLY for the Fire Engine/Ambulance combo. Though this is not the full intention of this training. However, it is not known if it will be possible to make the ALS training function the way we have intended it to, and whether or not the developers will adopt the idea of having ALS treatment personnel onboard standard fire apparatus.
I also reported this on my side, adding the fact that is totally confusing to propose ALS training for FF if they are not able to do anything even on a Level A patient. Also that's totally not logical and not realistic as they want to be.