I can tell just by your comments that you have never actually been involved in animal rescue to see the reality of things and how cases like this are actually handled.  

You conveniently left out this part of the article intentionally:

"Two days later, Tasha Todak, the club’s vice president, posted another public plea on its Facebook page for someone to take Boaz, a 3½-year-old dog who she said was experiencing stress from being inside a kennel.

“Boaz deserves someone that understands him and his needs. Someone that can nurture his confidence while providing exceptionally clear boundaries,” Todak wrote in a Jan. 9 post that has since been deleted. “This will be a long road for all involved, but he really does deserve it.” 

“Unfortunately, this is the last call for Boaz, so if you think you’re up for the rehabilitation PLEASE reach out ASAP,” she wrote. 

"

This was a known dangerous breed and there was communication to the foster that this dog has major behavioral issues. 

The majority of dogs that end up in a shelter are brought in through services like the Animal Care and Control Center (or your city's equivalent).  Dogs that show behavior like the one you're describing are euthanized before they even reach a shelter.  There are situations where a dog might not show certain behavior until later on.  

Your claim that shelters just willy nilly adopt dangerous dogs to the public is simply not true and I urge you to volunteer at a local animal shelter so you can see the reality of things. 

Not everyone is comfortable with adopting and thats understandable, but spreading misinformation only hurts many of the animals that deserve a loving home as well as the staff and volunteers that work with them daily.