I think it is nice to know some of the different ways to analyze reds and whites. Dry vs. sweet, tannic or not. Reds, how fruity they are and what kind of fruit (cherry, dark/stone fruit or bright and berry). Earthy/funky or smooth and light.

To me, those are things that allow you to elevate your enjoyment of tasting the wine itself. Anything beyond that (knowing region or grape by taste) is turning wine into a hobby, which is fine, but not necessary.