I think her review misses an important point about Worf's character.
Worf isn't just Klingon to the core: he's more
Klingon than Klingon; he takes Klingon tradition and Klingon honour more seriously than most Klingons who live in the Empire.
As the old saying goes: he's more Catholic than the Pope. Having grown up among humans, he takes Klingon values and traditions at face value, and strives to live up to an idealized image of Klingon-ness. And when he spends some time with other Klingons, he's often disappointed at the way they don't live up to his ideals.
I always thought this was one of the most realistic bits of characterization in all of Trek. In a sense, Worf is a convert to Klingon culture, and displays all the zeal for which converts are noted--as opposed to the slacker, more easy-going ways of people who have been raised that way.