Here's a guess:
They are trying to cut a cost somewhere in production by sealing it in the bags they use rather than a tin. They also save money by preserving it differently. They probably figured out a preservative combination that evaporates and the nasty taste of it goes away. They market it by calling it "acclimation" since a fancy term sells more tobacco
Its a business strategy and a production cost scenario
keep in mind this is just a theory and i have no proof of any of this
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