Why do you think that PSG wouldn't humiliate weak Tottenham just like they did to other clubs. Enrique Luis will take this super cup more seriously and wouldn't want what happened in the CWC finals to replicate in this match. Tottenham is weak and don't have a good squad to play PSG to the point of winning the match. I might be wrong but from my analysis, PSG remains the favorite.
PSG is clearly the favorite in that match. Tottenham is not doing so well right now. Even though they gave their all in the Europa League, we can see how they are struggling in the Premier League. In the Europa League final, their opponent was United, and we know both teams are also experiencing a drop in performance. Luckily, Tottenham won. But facing PSG, we might see a different level of play from both teams. Tottenham could surprise us, but they have to give their best in that match.
We can assume PSG to be the favorite to win against Tottenham in the super cup finals because of how informed they are despite Chelsea winning them in the FIFA Club world cup finals PSG still remain the best team in the world but can't conclude that they will win Tottenham in the final, Chelsea game against PSG still remain us that football is unpredictable almost every body believe PSG will win since they remain favorite but all got disappointed PSG was humiliated by Chelsea so anything can happened this is football Tottenham can still win PSG nobody knows.