despite savathun being a deceptive little shit, she does explicitly say that she likes luzaku specifically because she has defied her and the lucent brood, not to mention she helped us rock the witness's shit, so shes a real one at that
No wait she has a point. The lack of memory could actually be very beneficial for a lot of people. The Light does provide a near fresh start (unless you’re known for murdering the handsomest Hunter in Sol in which case..)
it's been theorised that that's been the point of the traveler doing that for ages now so i'm glad bungie confirmed it, even if it's in a line of dialogue the playerbase only has a chance to get
Read the collectors edition witch queen material if you have a chance! Ikora talks about how lights lack of memory allows escape from the Prisoners Dilemma, and escape from a universe of simple maximums
Witch Queen Collector's Edition lore goes into Ikora's theories about the light a bit. About how the philosophy of the light is about building connections and founding communities. Guardians forget, in her eyes, because (apart from the Darkness being the power of memory) it allows them to forget the predjudices and grudges of the past and build a better future from that.