You are right, that today Bollywood is refered only to Hindi film industry today. But unfortunately some Westerners still use Bollywood as whole Indian film industry. The businessweek article author is one of them, although he used an asterisk to clear, that he means the whole Indian industry. Shshshshsh uses the dumbness of the businessweek author to implicate, that Bollywood (the hindi industry only!!) is the largest in the world. This is vandalism.