I agree. I think that PSG has the best squad in world football.
That said - PSG has some weaknesses to shore up - a long ball over the right may well prove useful - Nuno Mendes is, IMO, the best left back in the world, but he screwed up at least twice leading to Chelsea's goals.
Palmer, OTOH, was spectacular. He won't always perform this well - but he had 3 amazingly good shots on goal in the first half - 2 of which resulted in goals - and he assisted for Chelsea's 3rd goal.
PSG could have done better - but Palmer's performance was abnormally awesome - no way to stop that.
IMO PSG are still the best side in world football - whereas Chelsea are going to be very difficult to score against and carry a threat going forward. I think that Chelsea finishes in the top 4 in the P/L, probably 4th; but they might well win the league.