The drunk aspect was more to contrast the context. It just seems ridiculous to me to apply the same standard of sexual harassment at a bar scenario as the one that is in place in a work environment. Some cheesy pickup line might loose someone his job at day but get laid at night. It is clearly about context and social appropriateness. Both people in the story are in my opinion having some odd expectations in that regards.
This went far, far beyond a cheesy pickup line. This was repeated harassment far beyond the bounds of acceptable behavior, even at a bar. She made it very clear that she wasn't interested, and he continued. She moved away, and he followed her and continued. She brought up the fact that he was married, and he continued. She brought up his daughter, and he made sexually disparaging comments about his own daughter.
We should not confuse ambiguous situations in which someone makes a slightly off-color joke with serious, repeated harassment. That does nothing to help the situation.