Right, I think the article would completely agree that society as it is right now is not a broadly accepting place for males to be open about their emotional needs. Which is why the call to action isn't for males to be emotionally open in general, but for fathers to try to have more positive and supportive interactions with their sons about emotional needs.
And why the article's guide point is 'Encourage them to share their struggles — with you, of course, but also with other trusted adults, a therapist or even friends.', not 'Encourage them to share their struggles with all their acquaintances'.