People say such ignorant stuff. I don't think there's a right way to feel, but i think the way you feel is really common. I get why you feel the way you do.
Apparently many people are devastated when the people who abuse them pass away. Something called 'complicated grief' can develop so maybe that is something to watch out for, to see if in time it might be developing, and then maybe counselling would be appropriate.
Lots of love to you at this time.
xxxx