Organizations and individuals that oppose the practice of double charging make the argument that people who "disturb" passengers in other ways should also be charged.
These systems, used to scout players and create massive databases of information for clubs to analyze, are far more advanced than instant replay and provide quite the double-standard for the argument that baseball is a pure old-fashioned sport judged by the human eye.
This is a double loser: a black eye for the brand, and a difficult argument to make in court with a straight face (although such arguments often come across as surprisingly reasonable when they are made in the right legal context).