If we ignore Spock, Tuvik and T'Pol, i.e. Vulcans among the main characters, the fellows with the pointed ears appear very sporadically over the years. I recall e.g. only two Vulcan stories in TOS and one in TNG.If anything, ENT made them more interesting.
ENT on the other hand was constantly about the Vulcans, their relationship with humankind and they way these two cultures mutually influence each other. Archer learns concept like non-interference and thinking about the unanticipated consequences of your actions (Xindi Crisis!) whereas Soval learns to appreciate human qualities.
One could argue that this slightly mirrors Tolkien and his notion that immortal elves are less enthusiastic and driven by the desire to do and change something than short-lived humans.