that sounds a bit confident. maybe it's too confident. maybe you are succumbing to Dunning-Kruger yourself!
I have found that if I sound confident, other people will listen and follow, regardless of whether I know what I am talking about. I have also found that women tend to be attracted to confident, self-assured men, and are less concerned about whether the guy is actually right or wrong. So, if my theory is correct, men should display more self-confidence. Maybe the author already considered gender differences, but I didn't RTFA, I am just assuming that I am right.
Taking what you say in a work context, I would agree. Whenever I go into a meeting, get asked a question, and respond with an accurate "it will most likely work", everybody freaks out and thinks I don't know what I'm doing. If I respond with "yeah, there's no way that can fail" while running through my head some edge cases that would cause it to fail, everybody leaves happy and congratulating themselves on a successful meeting. I eventually had it pointed out to me what I was doing, and now I see it clearly. For the most part, managers above mine have no clue what is going on, and only think it terms of "it will work" and "it won't work". They aren't going to go to the CIO and other senior directors and say "this is a good path, we are 92% certain it will work". In the end if I say it will work, and it really doesn't, then they have short memories anyways ... most of the time.
The most frustrating is when there's two options, one presented by somebody who has a history of not getting things right and generally doesn't know what he's doing, and one I present. The imbecile goes in with "this is the way to go, absolutely", and I go in with "this is the solution most likely to work. We'll know more after it runs for a few weeks and we have more history in this environment. They always go with the imbecile, and it always fails.