Also, it is worded like the ol' college rape "statistic" was in the past. "stop college rape, 2 in 5 women" and it turns out they wrapped everything from actual rape to "brushed past them on the sidewalk and bumped their shoulder" to "I had a dream where a guy cheated on me" into the statistic, and not only that, but they simply counted number of incidents versus total population, so one Karen getting pushed out of a mosh pit would count as like 50 women "raped", one per person in the crowd. I'd bet money the "research" methodology done here will be similar:

One woman screams like a psycho in the street, and five people driving by yell "shut the hell up, psycho!", and they note that one incident as five women (one woman x 5 occurances) being called on the street (they never said it had to be one-sided, or complimentary).

WAIT! There's more! It isn't even that, it's "street harassment"! That means a fat guy not walking on the grass and insisting on using the sidewalk too, daring to use her sidewalk, ALSO qualifies as an incident!

EDIT: and "almost" 1 in 2 could also mean 0 in 2 women, even with all those leniencies and hand-wringings. 1 is merely 1 off from 0, so 0 is almost 1. "in 2" is a separate measure completely that doesn't need to be taken into account. This is why statistics are lies, and damned lies. The phrase means NOTHING.