The point of blaming anybody isn't really about "blaming" them but understanding the cause of your personal trauma and how you reacted to it. You shouldn't hold on to your trauma by only blaming someone and stopping your personal growth there. You should work to heal it and better yourself. It is hard to start healing if you don't know the cause. You have to start somewhere.
A small example from me is I wouldn't buy tissue to blow my nose because "I don't need it. I can use some hard ass brown paper towels and hurt my nose and irritate my skin." I don't mind buying the soft lotion plus tissue for my family and loved ones, but not myself. Why? I couldn't understand why I felt this way. I just kind of always felt that way. That I'm not good enough and didn't want to bother with nicer things for myself because "I'll make do." Is this from upbringing? Parents? Siblings? Friends? Self imposed rules because I interpreted other people's actions and thought I wasn't good enough. Finding the cause does help people feel better because they can have a better understanding of what to focus on.
So yes it does help me feel better. I now have a thing of tissues at work I use when my nose gets runny instead of making do with rough as paper towels. 😁