Yes I agree but there is no recognition that his feelings are just that - his feelings and not an accurate window on what was wrong with his granddaughter and why she was driven to take her own life.
Not only does he think his horribly judgemental view is accurate (he states it so strongly and so dogmatically, even theatrically that it's clear he believes it), he also wants the whole world to know it and agree with him. That's very different from telling, say, a close friend who you know understands your experience, in confidence, that xxx was actually a total cow. It's also very different from a professional writer who says 'here's my experience' He is not talking about his experience of his granddaughter. He's going further and saying this was his granddaughter.
He also has the nerve to mutter some platitude about it not being a good idea to remember someone in a one-sided, overly complimentary manner, and then launches what amounts to a national character accusation on a troubled child.
I am devoutly thankful he is not a member of my family and the most I can do in the way of charity towards him is to reflect that he has probably seen his own children suffer and not understood that his granddaughter did not cause that suffering.
The summing up in the last line is the cherry on the cake in terms of finishing off the portrait of this very young adult as a self-indulgent, cowardly toddler. He has decided she killed herself because she had spent her rent money. Like you do. Despite knowing that this is someone with a very complex mental health history whose suicidal act could not logically be boiled down to one event at all.
I also find it distasteful that he chooses to repeat her social worker's very unprofessional comment about her suicide amounting to a 'tantrum'; I get the impression he was rather pleased someone had said this and is pleased to have the opportunity to link her name with such a criticism forever more.
I wonder if he sought his daughter's approval before publishing this. I suspect he didn't. If he did and she agreed, I suspect he is the kind of man who engenders compliance and hates his granddaughter because she refused to give it. But I acknowledge that is speculation.