the results are “high” as much as 10 percent because the researcher do not want to downplay how “intelligent” their new technology is. But it’s not that intelligent as we and they all know it. There is currently 0 chance any “AI” can cause this kind of event.
Yes, the current state is not that intelligent. But that's also not what the expert's estimate is about.
The estimates and worries concern a potential future, if we keep improving AI, which we do.
This is similar to being in the 1990s and saying climate change is of no concern, because the current CO2 levels are no big deal. Yeah right, but they won't stay at that level, and then they can very well become a threat.