By the time my dad died, my poor mum had dementia, but she still felt the loss.
I was fortunate in that dad was a good age when he died. Even so, it was a tremendous loss to me. However, the prevailing attitude seemed to be "Well, that's life." (Someone actually said that to me.)
I think that might be because most people who lose a parent already have children of their own to focus on and there's an attitude of "Well, it's the time for the next generation."
When my husband died three years ago, one of his kids tried to comfort me saying "It was his time." It's really not much comfort when you've lost the love of your life.
I'm trying not to be clumsy with my words because I don't want to cause further upset for the OP. I hope that she gets the comfort and solace that she needs and deserves.
I don't think that people are deliberately mean - they just don't always empathise the way that you might expect.
Three years after my husband's death, I've stumbled across a Bereavement Cafe. I've been once and it's helped.
If there's anything like that available in the OP's area, I'd advise her to go. There's no counselling, but just people with a shared experience of losing a loved one.