You have to understand that wine descriptions are nothing more then marketing message that have very little resemblance to what is inside of the bottle. It would be interesting to see how those description change during the time as this message is changing all the time to catch the current trend.
Wine market is actually quite simple: you have few tiers of wine/wineries: from your basic mass market wines to mid tier to premium and ultra premium. Each category have some price point and higher the price better fruit (should) come to it.
There are differences in between the regions, but lower level wines are usually same no matter the marketing message and premium wines are usually very different and special in each own way anyway.