My understanding is that this was, long-term, very good for Coke. Check out this line:
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On 11 July 1985, once the extent of the soda brand’s mistake had become evident, Coca-Cola relaunched the original recipe, rebranded as Coca-Cola Classic.
According to the beverage corporation, the news of the drink’s long-awaited return “made the front page of virtually every major newspaper”.
"
"The events of 1985 changed forever the dynamics of the soft-drink industry and the success of The Coca-Cola Company, as the Coca-Cola brand soared to new heights and consumers continued to remember the love they have for Coca-Cola.
"
" On 11 July 1985, once the extent of the soda brand’s mistake had become evident, Coca-Cola relaunched the original recipe, rebranded as Coca-Cola Classic.
According to the beverage corporation, the news of the drink’s long-awaited return “made the front page of virtually every major newspaper”. "
Talk about free advertising!!
From a biased source: https://www.coca-colacompany.com/news/the-story-of-one-of-th...
"The events of 1985 changed forever the dynamics of the soft-drink industry and the success of The Coca-Cola Company, as the Coca-Cola brand soared to new heights and consumers continued to remember the love they have for Coca-Cola. "