I’m sure one could learn to appreciate all the different aromas, yes, and hat doing so would be an amusing and interesting pursuit. However, I have enough hobbies and interests already and don’t need another one. I just want coffee that sort of resembles what you can get at every street corner in Italy.
Agreed on Starbucks being roasted too hard, though. I suspect that’s because most of their coffee will be diluted by large amounts of milk and sugary stuff and this way some of the bitter flavor people associate with coffee.