U are right. This is one of the reasons I present to people as per why PSG don't do well in some competitions outside French league. The confidence PSG has while playing in their local league isn't buoyant enough to keep them in competitions like champions league.
PSG has been very poor this season but yet, no other team in the French league was able to overthrough them from the top position in the French league standing. This alone shows how weak the league is.
They don't have good reputation in Champions League and even they have enough quality, it's not enough for them to make opponents have fearful feeling. In some big matches, PSG got very good differences like 2 or 3 goals ahead but they collapsed very easily. Among big clubs in Champions League, last 10 years, PSG are the most victims of historic come-backs like with Barcelona, Chelsea and Real Madrid.
If they have reputation like Real Madrid, opponents will easily give up if PSG led 2 or 3 goals. They don't have it now and they have to work to get it for their club in Champions League.
As strong as PSG's squad is, better performances were expected from them. They cannot play well in Ligue 1. Maybe they will win the Ligue 1 title, but I am not satisfied with their performance. A better performance was expected from such a strong and star-studded squad. PSG's performance in the Champions League was very disappointing. They lost badly against Bayern Munich. As PSG's performance is not improving after spending huge sums on star players. So now PSG management should look for an experienced coach. If the coach is experienced, maybe their performance will be somewhat stable.
It is acceptable if they have a bit difficult in Ligue 1 but go far in Champions League. However reality is they failed in Champions League at the first knock-out phase, round of 16 so any excuse for their not good enough performance in Ligue 1 does not mean anything. It's unacceptable for their fans to exit Champions League at round of 16 and see their star players turn to be meeky sheeps in Champions League.
In the last two seasons, PSG did not repeat their successful season when they went to Champions League final and failed under hands of Bayern Munich. Three seasons later, they failed against Bayern but at round of 16. No revenge after all for PSG after 3 years.