~Snip
No it doesn't depend on Luis Enrique only. There is a reason why teams from leagues like Portugal, Eredivisie, Ligue 1 and others almost have no chance to win the Champions League. The main reason is that these teams are not good enough and if they are in regards to the players they have and the quality they potentially can bring onto the pitch, then the teams don't get challenged enough throughout the year and are playing against far inferior teams all the time. But then out of a sudden the next opponent is called Real Madrid or Manchester City and that is when they haven't developed the tools during the season to deal with the problems that these world class teams can create for any opponent. PSG won't win the Champions League and I doubt that Enrique should be blamed for it. It's never the best idea to buy a club in a weak league, invest billions and then hope to win the Champions League.
Before Manchester City won the Champions League title last season, Manchester City had also been to the final but failed to win the title because of Chelsea. Pep Guardiola once said, this team needs to get good experience in the Champions League and they have to learn from their mistakes and correct them in the next season. Pep Guardiola ultimately managed to win the title last season, so PSG may have a lot to learn from Manchester City's journey to the title.
Of course, Ligue 1 competition is not too tight compared to the English League, La Liga and other leagues, but PSG is a team that has improved in terms of the quality of its play but has not been lucky in terms of titles. They have tried to improve themselves and increase the depth of their squad every season, but success has yet to come. There will be a time later, but of course no one knows when, what is clear is that they might still get it this season.