The reason why they are honest about it is because it protects them against lawsuits. That's what the risk factors is all about. (That, and SEC regulations). That's why companies go through great lengths to disclose all the potential risks even if some don't sound realistic.
So if you want to sue them, you best check the risk factors first. What has been disclosed, and what has not. In fact, you shouldn't invest in a company without reading the risk factors first :-)