I think that news thus have effects on the market and changes alot of market sentiments easily. And also there is chain to dissemination of information, where some peeps get the information ahead and use it to influence the market before other users.
With just a news, token price can surge or dump drastically
You are right, only with a bad news. This whole market will collapse in a short time, I still remember March 2020. We have just received a few FUDs from the market and bitcoin price has dropped to $ 3,000. This is really terrible because it has caused many investors to lose 40-70% of their assets.
We can't be sure if it is the news itself or the events really.
Because at this day it is quite difficult to differentiate one from another.
But we as experienced users know - there are fake news and they could be viral