It an usual practic for pre-sale. Usually the statistic is showed only at the main stage of token sale.
Now it may not be up to sales statistics. The team is better to suspend the main sale. Many projects completed pre-ICO, completed the bounty campaigns, but did not start a main sale. Bears do not hibernate.
Of course, it's unpleasant for teams to stop halfway, but what can you do when the situation in the crypt-exchange market is unfavorable and investors also pause?