They were on completely different Levels.
They weren't even given the slightest breath in this match.
PSG on the other hand are really top notch, the last Hatrick of the season for Mbappe was absolutely incredible and indeed in this match whether or not there was a red card for Metz it didn't really matter they were completely crushed to be in the relegation zone position with Bordeaux in this season
The PSG vs Metz match is very easy to predict, it is not surprising that PSG can finally beat Metz with a large enough score. Besides Metz being
in the relegation zone, then Metz also played with only 10 players since 58 minutes. So it is certain that Metz will not be able to provide any
resistance against PSG, so PSG finished the last game in Ligue 1 very well. Moreover, PSG is now getting other good news that Kylian Mbappe
finally extended his contract with PSG. This makes PSG increasingly confident that they will be able to perform better next season.
As I said before, the presence or absence of a red card there doesn't have any impact because even when they were playing with 11 men they had already lost 4-0.
This is indeed quite easy to pass with Mbappe there. on the other hand now they are off and have to prepare something new for next season.
Apart from the actual coach, PSG doesn't need anything that needs to be overhauled, in fact, it's just a matter of adding a few midfielders and defenders to fill in the blanks.
Metz has a different level to PSG, so even playing with 11 players they can't possibly make it difficult for PSG. Even as you said, PSG actually
scored 4 goals before Metz got a red card. It means that PSG is too easy to beat Metz, even though PSG are lucky enough to only score one goal
after Metz got a red card. Maybe because the PSG players are quite satisfied with the number of goals they have created, so it's not too ambitious
to score as many goals as Metz gets a red card in 58 minutes. Finally the Ligue 1 competition ended, so we will look forward to how PSG will
perform next season. Maybe in the near future it is very interesting to see the movement of PSG in the transfer market, we will see which other
star players PSG will bring in. Because Mbappe has extended his contract with PSG, it looks like PSG will concentrate on strengthening their
midfield and back line.