My post was intended as flippant, but I do know the full story.
The woman was treated normally by the United flight attendant. Rude service by United is the norm, and excusing it by claims that it is necessary for security par for the course. However, the argument that a young woman armed with a cola could be dangerous was pretty ridiculous. The better airlines provide, not only cans of soda, but even small bottles of wine. I am unaware that these have ever been used for terrorist purposes.
She was upset, posted about it on her Facebook page, and responded to media enquiries when the story went viral. Was there any Islamophobia? I think at least one of the passengers telling her to "shut the f--k up" was probably motivated by an antipathy to Islam. I certainly would not speak that way to any young woman.
You are quite right that the story has been blown out of proportion. That said, many people exhibit a quite irrational fear and hatred of Islam. The vast majority of Muslims are normal folk whose dress code may or may not be old fashioned.