Why shouldn't those circumstances be taken into account? Perhaps it's because -- as a race -- most Asians are too proud to talk about this in their admissions essays, and moreover, their intellectual accumen would tend to indicate that these -- frankly minor -- issues are not important when considering what school to attend.
What we should really be talking about is why anyone -- Asian or black or whatever -- needs to elicit the sympathy of some old WASP to attend school. The whole 'write a sob story' trope is true because this appeals to popular white culture. It's time that ends, and we let adults run the show.