You're not aware of the introduction of "new coke" and the amazing consumer backlash it caused? It sounds a lot like this thread
After 80 odd years as an American institution, Coca-Cola USA shocked the nation by announcing that it would reformulate its classic drink. The "New Coke" was a lighter, sweeter beverage, one more like its long-standing rival, Pepsi.
Carefully developed and researched, New Coke seemed a sure winner. Consumers across the country had preferred it to Pepsi in blind tests. But taste aside, Coca-Cola discovered that it hadn’t fully understood Coke drinkers’ brand loyalty or the iconic power of its flagship product.
Reactions ranged from disappointment to outrage. As one Coke drinker put it, "It was nice knowing you. You were my friend for most of my 35 years. Yesterday I had my first taste of New Coke and to tell the truth, if I had wanted a Pepsi, I would have ordered a Pepsi not a Coke." Another argued that changing Coke was "akin to diddling with the US Constitution."
Three months later, Coca-Cola bowed to public pressure and announced the return of the old formula, under the name of "Coca-Cola Classic."