@salarsikander , well the article itself says
He was firmly against the blasphemy law itself and was a vocal critic of the Blasphemy law by itself which according to most is an even greater crime than acting against quotes in the law. Plus, he is not the first nor the last official vocal critic of the law(though they are a tiny minority) who has landed himself in trouble.I remember reading that a month after this Salman Taseer was killed, another Religious Minorities Minister Shahbaz Bhatti, a Christian who spoke out against the laws, was shot dead in Islamabad, so this also underlines the threats faced by the few critics of the law. There was no mass public protest/anger against this and it didn't even make much waves across the country either(at least this Taseer guy case got some coverage. Lol )
So as I said, the focus should be on the law itself. If the vast majority of the public,country and government is behind the law(which seems to be the case), then the minority have to abide by it, even though I know it might be hard for them to do so, but they have no choice.they have to follow the law of the land no matter how hard it might be .
https://en.m.wikipedia.org/wiki/Blasphemy_law_in_Pakistan