why!
do you really think if someone sells less than a million bitcoin to the public market, bitcoin is going to die! that doesn't make any sense to me. price may fall but it won't kill bitcoin, there still is 20 more million coins on the market and there are millions of people buying bitcoin.

and also it makes even less sense to think Satoshi is suddently going to come out of the blue and dump all his coins!!! thet makes me laugh
that's what a crazy person would do.