There is low hanging fruit in this specific application for Agbots.
The way wine grapes are grown, carefully trained and groomed to grow in a line, a specific shape and orientation, almost like an entire field of carefully shaped bonsai trees. Once it's established, a vineyard doesn't change much year to year. It's a ideal place to start with agbots and get things right before going to more complicated applications. The labor costs are also high, and highly seasonal as many of these vineyards are in expensive coastal areas like Nor Cal.