Why do I not see this as a FML?

At least she apologised. Could be worse, she could have asked them to apologise for... well, anything.

OP's grandma sounds a lot better than all the other evil ones we hear about on this sites, tbh.

She was the one apologising.. She didn't ask for anything.

Was she personally involved?

did she offer fried chicken along with her condolences?

That's kinda cute in a grandparent and it could be worse, a lot of old people are racist!

Apologizing is better than the opposite...

Sounds innocent enough .. She was just making small talk

KFC mmmm.... I love me some KFC and Watermelon, and Kool-Aid.

abraham lincoln could have given her a medal for that deed

She's right to apologise OP even if it's not directly her fault. People love taking credit for their ancestors' good deeds but take no responsibility for their bad deeds.