You are getting tied up in discursion. The reality is that people do what they do to get shit done, and often that isn’t precisely the thing that would stand up best to scrutiny later. So now, looking back on it, it’s easy for you to say “she shouldn’t have done that, and that, and that.” But living forward through it, those things she “shouldn’t have done” are just things that happened on the way to getting shit done. There was no careful plan to do something that would later look bad. It just fell out of circumstance. I’m sure if you look at your own life, you can see things that have this quality–you didn’t really see the implications when you did them, and then later the implications became clear.
Saying that because of this, she is unqualified, is silly. Nobody is qualified to be president. But if anybody is at least somewhat qualified, it is Ms. Clinton. Will she do a perfect job? No. Will there be things that you can nitpick in retrospect, like this? Yes, absolutely.
There are no adults in the room. We are all making this up as we go along. Mistakes happen. That is okay, and natural. It’s actually worse if you spend a lot of time trying to avoid making mistakes, because they are really difficult to anticipate, and the energy you spend on that gets in the way of getting stuff done. You should put some energy into it, think through what you do as carefully as makes sense, but then you have to decide and live with the decision.