As I understood it, "bro culture" was supposed to be about overly techno jerks treating other people (most notably women) badly. Exaggerating to explain the point: bro culture means putting picture of naked lara croft on the wall and then pretend last women changed the job cause she was too weak.
The first half of the article is about minority candidates not even showing for interviews cause of structural problems in education (two quotes):
* (page 1) too many kids of color who think that they're going to be basketball stars or entertainers or Barack Obama,
* (page 1) By the time kids are applying for colleges, they're virtually out of the game.
Then the article shows stats that tech employs mostly white people, which is not surprising given education failures described on the first page. So far so good.
Out of nowhere, there is complain about bro/frat culture, as if the same article would not describe those minorities "out of the game" well before even applying. (Assuming you search for tech job after college). No relation between previous content is shown.
Then another jump and it turns out the article is just an advertisement for some startup hackatlon.
So, yes, companies should allow and embrace cultures other than those of their founders. No, this article still has bad title.