Yes exactly this. ^
I know a woman who has no relationship with her birth mum (BM) - and hasn't had for 30 years. Her dad died when she was a toddler. Her BM was abusive and violent, and she had to be raised by her aunt who was 15 years older than her BM. (Moved in when she was about 9.) Her aunt died 20 years ago when she was 30 and she walked away and pretty much lost touch with her 3 cousins (her aunt's children) after several years. She's hardly heard from them for some 18-20 years.
Her BM died last year, and 2 of the cousins contacted her on Facebook, and told her she had died, and told her when the funeral was. She messaged back and said she's not going, and like, why would she?! Both cousins said 'you're joking, no way are you not going, to your own MOTHER'S funeral?!'
She said 'that's correct, and she is not my mother, she is nothing, and she has been dead to me for 30 years.'
The next day, a family friend who knew the BM contacted her and said it's horribly disrespectful to not go, as that she is her mother! 🙄 No contact for 30 years and nothing but hate and abuse when she was a child, and she was being guilt tripped into attended her funeral, purely because she was her birth mother. She just blocked them all, and deactivated her Facebook or a few weeks, so they couldn't contact her again.
She did not need to 'get closure' on anything. She 'got closure' when she went no-contact with her in the late 1990s, and cut her from her life.