There should be no law of death penalty in the first place. As pointed out in the original post (and made amply clear by history) there is no such precedence from the life of the Prophet and early Islam. The current blasphemy laws of Islam are based on an extremely narrow interpretation of Quranic verses which hardly makes any sense. At most, people who desecrate Quran and commit blasphemy (if substantial evidence is there) can face the fine or imprisonment of a few months, that is, after they are given the option of retraction and apology. But death for such a crime is nothing but barbarity which has become a hallmark of modern-day Muslims.

So this black law, as it exists, needs to be abolished. A law that is itself barbaric will inevitably be "misused".