Well, I don't think anyone should fear to not taste something in a wine. Especially since palates can vary so widely. It's more important be able to identify the flavors, characters and aromas that matter to YOU. Everything else is really academic. Yes, it's good to be able to identify characters, aromas, nuances and such for other people to give them a sense of what you may taste, smell and have as an overall sense of the wine, but they will inevitably find their own new and exciting flavors and aromas that will pull them in. So in the long run, just take the time to appreciate what you're drinking and make some general notes. Them, come back to your notes a month later with another bottle of the same and write more notes without looking at your previous notes. You may be surprised what you find.
Cheers,
Oskaar