Glad? Nope you're angry. And carrying around a grudge on a dead man will end up hurting you in the end.
These people grieved for your father as well and many were as equally outraged, but striking out at them with this spiteful attitude will not endear you to these people, nor will it hurt them. These people already lost a friend in this sad event, just as you've lost your father. The comment will be a lasting memory to your bitterness. It's been two years since your dad died.
I get that you're angry, but wouldn't it better to make sure these kinds of deaths never happen again? Channel your energy for good rather than pot shots..
I'm sorry you lost your dad, you were both robbed of precious time. I hope you can heal.