Well we already found one example, so I would guess B5 was hiding better. The fact B5 looked very consistent and was always planned for 5 years except one moment when it was supposed to be shortened to four and then they changed mind again certainly helped. Ok, can agree with this. But that was only one-time and Jar Jar wasn't only one who was played by Palpatine. Case in point, Anakin Skywalker. Meanwhile, Jake Sisko got into it himself. Seriously, son of commander of the station, how could he hoped they overlook him?