Yes because seizing your keys is the only way they can ruin your life. If the govt feels threatened by a movement, it will seek to destroy it in the most aggressive ways. If they seized your family, you're going to think long and hard about how much those keys are really worth. I can't believe 6,000 years into this people still haven't learned.
I seems to me Saylor is trying to reassure institutional investors that there are solutions that minimize the threat to the govt. He isn't telling you to give up your keys.