Sometimes a variation can do a lot to a song. Bennie and the Jets is a great song, but it's really hard to imagine it with out the "live" aspect. Just like the acoustic version of Layla that's almost played more than the studio version. I guess it was just the mix, sounded better "live" than in the studio.
Musical special effects have gone too far. Today, it obscures the music. A recording that was not done live can be made to sound as if it was, misleading the public. It will also not sound right and the artist's energy from a live recording is missing. Although special effects can enhance the sound, it has gone too far and becomes the story.
I don't think special effects have gone too far. What harm is this doing? You could argue that impinging on the rights of someone to use technology for a creative endeavor such as music production is curbing their freedom of expression, for no real reason. I can't imagine why people would care about this.
Using special effects, producers of TV shows, songs, movies, and other entertainment have elevated the industry. They make these ordinary pieces of work into something that will be enjoyed. The audience wants something that will make them feel comforted, part of the crowd, and included. Using crowd noise and whistles gives the feeling of being there to watch the live show. This makes a memory in someone's mind and encourages them to want to repeat it over again. Therefore, the purpose of the song is successful.