It is! If all the lights ever go out, I can just sit and play guitar all night~
Interesting to get a perspective from the other side, here. You're completely right. Someone can easily play a string of complex notes, but they'll feel dead. A great example of this is the song La Valse d'Amelie, which has an unbelievable amount of covers and stuff on Youtube. Look at a few; I really enjoy the accordion ones. Some of them just sound dead, even though they're playing the notes correctly. Others sound magical. You can see it in body movement, finger movements, even expression. You can't learn everything through a book or instructor, just as you can't always be taught feeling. Having both that technical base and a knack for feeling the notes is what makes the best musicians who they are, usually.