I’m working on the assumption that the people working at the company are a fairly typical example of the general population.

So I’m applying my experiences of people in general to them. It’s would be like assuming they didn’t read a software licence because most people don’t do that. And I know from previous experience that people would get an email asking them to put their name to this letter and would opt to do so based on their existing opinions, and wouldn’t take the time to actually read it. Of course some people did, but I think it’s a safe assumption to say most didn’t.