Plus, Del Toro is on record as only really liking monsters - "I like the weird ones, frankly," he said in a Playlist interview
Yes, that much was obvious in Hellboy 2. The protagonists were a bunch of misanthropes who'd cry when someone or something that wasn't a regular human stubbed it's toe, while whiping their asses with the corpses of their recently murdered human teammates or civilians. Anti-heroes are fine, but the only vaguely save-the-people scene we got was where hellboy saves a baby, presumably because the baby was to young to be able to say intolerant things to our 'heroes'. So we end up with a baby in an antique-looking carriage in peril, a scene frist used in 'Battleship Potemkin' in 1925, homaged to in 'The Untouchables' and which has no place being played straight in the 21st century if you want me to take the movie seriously.
So yeah, not terribly sad that he won't be doing Star Wars, as it holds about the same interest in me as Hellboy 1 did: Didn't set my world on fire, but entertaining enough.