Is Playing For A Second Time A Big Advantage? Or Shenanigans

I looked back last night and if my research is accurate only once has a season with returning players not had one of the returnees win it all. Dan was the only one not to win when he and 3 others began as "coaches".

Just seems odd that returning players would have such large success. With this being the season of "Tin Foil" how many people think there is some truth to returning players agreeing to comeback for so sense of victory?

I used to sit angrily yelling at stupid players, but this year has me thinking Big Brother is more show and less reality.