DaasYochid,
Why do you need to read it that way? Why not read it that his tefillos resulted in the z’chus, but that he died exactly when he was anyhow supposed to?
I don’t understand how dying al kiddush Hashem can be separated from dying. Also, I can understand the tefilla that, if/when it is my time, let it be meaningful, but that is different from coming in ex post facto and saying with authority what happened with someone and why.