I am so sorry that happened to you! I'm sure it was just that one lady being a crazy person. In my experience, the rules to board a plane vary GREATLY from crew to crew.
Fwiw, my younger sister got sick in the walkway to the airplane and they let her board. She was hungover . I love to bring that one up.
Loving wife to my gaming, sports loving hubbie. Sahm to J 2/12 and L 10/13