I guess the line about anger does have some value, but I still think it’s weird that Padme is so understanding after Anakin just went on a borderline psychopathic rant about slaughtering an entire village. It feels really out-of-character, especially given how shocked Padme is that Anakin did the exact same thing to the Jedi temple in ROTS.

I feel like the scene would be a lot better if Anakin never admitted that he killed all the villagers. He’d just rant about how he wasn’t able to save his mother, and about how the Jedi are holding him back from gaining the power to save those he loves. Then Padme would deliver the line about anger being human. From Padme’s perspective, she would just be consoling Anakin during a time of great emotional turmoil for him, but since Anakin knows he killed all the villagers, he would interpret Padme’s statements as “It’s okay to kill people.” That way, a line that was intended to console Anakin would just end up feeding his darkest impulses even more.