No. Unregistered players are not necessarily bad players or new players, and there are plenty of examples that support this. The logic behind this suggestion is like claiming that VIPs are somehow more skilled, trustworthy, or experienced than registered or unregistered players. It's just not correct.
Additionally, I think being President is one of the experiences that tends to get people hooked on the server. Why deny it to people who might be playing in PTP for the first time? Not everyone has the time or patience to wait 30 minutes to register, then wait to actually be able to become VP or President after that.