Avram, he indicated that the Chofetz Chaim’s tefilos led kiddush Hashem to be the cause of his death; he didn’t indicate that the CC tefilos (or anything else) resulted in his dying any earlier than he would have otherwise died.
Is being brutally murdered by sonei Yisroel the only way to die al kiddush Hashem? What about having the opportunity to say vidui and Shema and demonstrate faith and trust in Hashem even under the shadow of death, as opposed to R”L passing suddenly and unexpectedly?
Being brutally murdered by sonei Yisroel is far more preferable than having the opportunity to say vidui and Shema and demonstrate faith and trust in Hashem even under the shadow of death.