I don't think that this assertion strengthens an argument that voting for Trump is better than voting for any other candidate.
I would argue that someone who does not have experience in public office should not be considered a viable candidate for president of the United States, much as I believe that someone who has not driven a car before should not be considered to be a driver in the Indianapolis 500 race. I don't think it's "worth trying out" someone who has never practiced a surgery to do open heart surgery on me.
I believe that a certain level of experience and track record in governance is a reasonable, basic criteria for the highest elected office in the United States. An example would be a governorship, term in congress, or a term a state legislature, something that provides a record of voting on issues that I care about, for instance - or displays some kind of governance style. Trump fails to meet this criteria.
It sounds like you and I agree that Trump implies more uncertainty, the difference in our perspectives is that you are comfortable with the uncertainty and I am not.
Is that a fair characterization of our positions based on this limited conversation?