Tea farmers always want their teas to fetch a good price. It would be foolish of them to not try to adapt their teas to the buyer’s tastes.
Think of tieguanyin oolong; the old style had a heavy roast, but lighter oolongs are now selling better. So now many tieguanyin oolongs are made with a lighter roast. It did not just happen, but was a modification to help the teas sell. Darjeeling tea in India was originally a very heavy tea like Assam, because British tastes demanded it. When British interest in Darjeeling declined, a German importer suggested that a lighter Darjeeling tea would suit German tastes, and the producers gladly followed, making the Darjeeling tea of today.
