I can address your question in a general context.
When a company makes significant changes to a product's recipe that lead to a decline in popularity, there could be several reasons why they might not revert to the old recipes, even if they were considered tastier by some consumers. Here are some possible factors:
Cost and Efficiency: Recipe changes are often made with the goal of reducing production costs, improving efficiency, or sourcing ingredients more sustainably. Reverting to the old recipe might increase production costs and affect profit margins.
Consumer Preferences: While some consumers may prefer the old recipe, others might prefer the new one. Companies conduct extensive market research to understand consumer preferences and may find that the new recipe appeals to a broader audience or aligns better with current trends.
Contractual Obligations: Ingredient suppliers or partners may have changed since the old recipe was used, making it challenging or expensive to revert to the previous formulation.
Brand Image: Companies may want to present their products as continually evolving and improving. Admitting that the old recipe was better could potentially harm the brand's image and undermine the perception of progress.
Adaptation to Health and Dietary Trends: Recipe changes might be influenced by shifting health and dietary trends, such as reducing sodium, sugar, or artificial ingredients to meet consumer demands for healthier options.
Sunk Cost Fallacy: While the sunk cost fallacy can sometimes influence decision-making, it is essential to note that companies generally prioritize future profits and customer satisfaction over past investments. The sunk cost fallacy refers to the tendency to continue investing in something simply because resources have already been invested, even if it's no longer the best option.
Ultimately, the decision to keep the new recipe or revert to the old one depends on various complex factors, including consumer feedback, market research, production costs, and the company's overall strategy. If consumers express significant dissatisfaction with the new recipe, it may influence the company to reconsider its decisions.