Saying you don't want the wines based off of terrain is ridiculous.
It's one of the entire points behind my post, and real life farmers grow their wines in specific regions for how the grapes turn out.
The reason we have different grapes is because they grew in different areas. Now I doubt the Devs want to try and make it based off of where you are in the map, since the world isn't static, so this is the next best answer.