Ordinarily I would not make this big an issue out of how someone markets their wine. But there's a special circumstance here. Well, the vineyard from which this wine originates is more than 25 years old, it's in a very cool micro-climate and the crop yields are getting smaller every year. They are planning to pull up the vineyard and replant it, no doubt to a higher yielding clone that won't make wine half so good. If this same vineyard was owned by a winery that could command higher prices, uprooting a great vineyard in its prime would never be considered.
Low yield is part of why the wine is so wonderful.
Tell them to charge enough for the next vintage to pay for the low yield, or sell the grapes to another winery that can charge enough, create a new brand just for this vineyard, or anything that will save an irreplaceable living, growing asset. Ripe boysenberry fruit aromas and flavors. Easy to drink but not flabby or wimpy. The least exciting of the appellation wines. Just developing cedar complexity in the aftertaste.