Oh grow up.
I don't care how long the woman wants to nurse he baby but she was causing a disturbance and probably intentional.
If she was being discreet, no one would have noticed or said a word.
There is a thing caused modesty that most people have forgotten.
I saw a woman at Atlanta airport traveling with a toddler. She was sitting crossed legged on the floor, wearing a tee shirt and lifted the tee shirt and had both breast exposed and then looked around the area to see if anyone was going to say something. No one did and eventually she did take a diaper and cover the other breast. Not till she was sure everyone had seen it.
You are the one who criticized for doing so.