Sometimes, market goes +ve or -ve after any good or bad news flash hits the market while on trading time like Inflation, Election Results, any big company news (like reliance, as we wait for some news in this issue and if it favour reliance, then it goes up and it doesn't will go down, simple because of the news)
So, because of some good or bad news also can hit the market strong, as we seen when congress won the parliament elections this year, no technicals works on that occasion.
Since nobody can predict the market the next day, we just can't blame the media.