It's true what you said, it looks like Lens will be able to compete with other teams and get more points to shift Marseille to 2nd place.
I believe that Lens can reach 2nd place and succeed to later fight for the title in the French League, even though it is impossible to beat PSG but at least if you can reach the top to fight for the title it will be a matter of pride.
Let's talk realistically, at the moment PSG is top of the Ligue 1 standings with 75 points. Below that, there is Marseille who has 67 points. Below that, there is Lens, who has 66 points. Currently, PSG is 8 points ahead of Marseille and 9 points from Lens. Meanwhile, Ligue 1 only has 6 matches remaining. if, we see who will be against PSG in the last 6 matches. it seemed, neither team was a formidable opponent for them. so, obviously, it looks like PSG are very close to the Trophy this competition.
As for Marseille, from my point of view, the only tough opponents for Igor Tudor's team are Lens and Lille.
meanwhile, with Lens' current performance. supposedly, the only tough opponent for them is Marseille. however, that doesn't mean that other teams can't match the resistance against Lens. well, I still have confidence that Marseille will still be in 2nd place. but it looks like the match between Lens vs Marseille will be an exciting match. because, Marseille is a team that plays offensively, and Lens is no exception. even so, I believe that Alixis Sanchez is capable of overthrowing Lens in the match later even though playing as an away game. I have nothing else to say, other than waiting for this fight to be held.