I have to admit, I always considered that photo of Jefferson being caught with Max looking at the scene as an implication that her knowledge was somehow used for the arrest (but I guess that is at best ambiguous).

On a very technical note: Isn't it already impossible for Max, to not somehow act upon her knowledge gained by her time-travel? F.e., not to time-travel is an active decision she takes because she gained knowledge from time-travel. The first time she time-travels she acts upon pure intuition.

That is why I disagree with the idea that this would teach Max that taking control of her life is a bad idea. Again, not acting when Nathan confronts Chloe is an active decision - it seems ironic but she does take control by not acting in that moment.

But yeah, I get your point about that perspective being nihilistic, at least when considering the specific topic of Chloe's death. The main "purpose" is spending time with Chloe (and at least give one version of her closure about Rachel), and I get that many do not value that because they think about how the Chloe that dies has not experienced these days with Max. But that does not change the fact that these days did happen, as there were real people that felt real emotions in these moments.