Sometimes we speak (or ask/pray) something and it happens. Sometimes it doesn't happen. When it does, we are impressed and we remember it, talk about about it. We (sometimes) believe it happened because of what we spoke or prayed. What would I have said? Most likely "wow!" or something. It would be a somewhat amazing coincidence. (IMO

)
When we speak or pray something and it doesn't happen, we may come up with a reason. And excuse. And most importantly, we aren't impressed. We don't talk about it. We don't remember it for very long. And if we want to believe that our speaking or praying actually causes things to happen that otherwise would not have happened, we sure don't post about it!
There was no violation of a principle, that I know of, when my brother died of cancer. It would most likely not be helpful for you to speculate about that. You didn't know him. He wasn't perfect, but he was a good father and would have been an awesome grandfather. He got to see his first granddaughter before he died. He has 9 grandkids now. They are
not better off without him, IMO, and if you disagree, you should just keep it to yourself.