Health – I never claimed to have this information. But the normal standard for Hatzalah is to have EMTs and Paramedics before the ambulance arrives to the scene.
Of course if it happens that the ambulance is nearby for whatever reason, I am sure that the ambulance would head over to the scene and might even be there before the other first responders, but that is not how they normally operate.
I have no idea if the members were there before the ambulance or not, but there is nothing that would indicate that the ambulance that normally responds from a central location was on the scene before the EMTs and Paramedics that would give your claim any substance.
I will ignore your personal attack as it does not add anything of substance to your argument.