Over-vaccination of pets

I found out today that the 1 yr & 3 yr rabies vaccine are the same.  I live in Colorado and I understand that they want to do the first vaccine for 1 year and additional ones for 3 years.  The vet told me they do this as a booster shot and then not to over-vaccinate the animal.  I had a vet in Oregon give my cat (in photo) all the yearly vaccinations, a tapeworm shot and extra flea medication all on  the same day leven though she had lost weight.  She is only 7 1/2 pounds at best.   When I questionned him, he was arrogant about it.  Two days later, on a Sunday, I had to rush my cat to the vet who told me she would likely die.  Luckily for them, she didn't.  It was THEIR fault.  Let's stop over-vaccinating our pets.  Those states that want rabies shots yearly, let's go to every 3 years or as Colorado does.