You'd agree with me that it's not the fault of PSG that the other clubs have refused to sit up, rather they prefer to remain in the position they are in as long as when the next season comes they'd qualify for the champions league competition. Chelsea made us understand that PSG can be beaten. Bring their game to them and you'd see a confused club but not many of the other French teams want to take this bold step so when as a formidable side you don't have a competition, you would have no choice but to rule.
Understanding that PSG can be beaten is no new thing because except last season where they got epic in their performance, PSG has not been a great champions league team except that they always have an appearance in the champions league every season. In Ligue 1 other teams have been unable to bring to PSG some sort of challenge where they will be played with their own style and I see that the PSG dominance in the Ligue 1 can be used as advantage by other teams but they probably do not know how to use it.
Saying PSG can be beaten is like saying they were unbeatable, even though they lost twice and drew twice in the league last season. This proves that even though they are strong, if the opposing team can find a way to beat them, and that's what happened to Chelsea in the CWC final, when they lost to PSG a few weeks ago.
PSG are indeed overly dominant in the domestic league, but they can also lose. It's just that their losses are few and their competitors can't consistently win every match. That's why Ligue 1 is always dominated by PSG, because the quality of their players is above average compared to other teams. So, I think as long as other teams don't invest to build a strong team, PSG will continue to dominate Ligue 1. Except in the Champions League, they will certainly struggle to repeat their success last season, when they won the Champions League trophy for the first time.