No to all of your questions. If you want to excuse his lie, so be it.
I have spoken on camera for more hours than I can count. I once watched four hours of myself on camera with a coach, to work on my delivery. Although fact-checking was not the point of the effort, I was startled to see two technical points I misstated in very minor ways. If you are going to write off someone you consider an otherwise qualified candidate over a statement that minor, you are not going to have anyone left by election day.