Why do you think a business should be compelled to sell something at any given price? I mean sure, you can burn them in the court of public opinion, but it's another thing when you say that government regulation should dictate the cost of a coffee beverage. I think that's where most people are landing in this, they agree it's stupid for Starbucks to do such a petty thing, but when it comes to lawsuits involving ADA regulations it crosses a line for reasonable response.
It's almost like the lawsuit for hot coffee where the person argued they didn't know the coffee was hot
You can get third degree burns from touching water which is 150 degree F for around 2 seconds. Most coffee world wide is served between 160 and 180 F.
In that case the water was supposedly served at 190 F while competitors coffees were served at 160 F. The lawyers in that suit claimed that if the coffee had been in the 160 range it would have taken up to 20 seconds to get third degree burns. We now know that even at 160 F she would have gotten the same burns within 5 seconds.
What exactly is your point?