or rather it would greatly depend on how many people decide to place "Buy orders" at too low price!
because nobody is able to sell anything at all - unless there are those who are willing to buy for that price.
(or perhaps even the project team themselves would participate in that bloodbath, since they are the major holder of BTC funds acquired during ICO)

so, in fact those who are too eager to buy off for dirt cheap (lower than ICO) looks like are considerably too many!
thus it is highly arguable - who will influence price more: buyers or sellers.
one thing is for sure though: if there are no buyers  for some particular price - there is nothing much sellers can do at all.