They could've survived if the people that walked up would've dragged them inside.
Why should they have done that?
The situation didn't concern them and was none of their business.
The couple (James and Lisa Goy) were hateful, contentious, vile assholes.
Why on earth should anyone be concerned about helping them to "survive?"
They pushed a guy to his breaking point, and they reaped what they sowed.
Regards,
-Ward