If everybody followed that instruction (which, of course, is ignored by everyone, including yourself) you could the number posts in this forum on one hand.

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Nobody has "full knowledge" about anything.
I doubt very much you would find any muslim who would "speak against the law of Allah"; that is a mutual contradiction. What you would find are those who do not accept that the Taliban represent the law of Allah, or indeed anything more than themselves. The majority of Afghans do not not want the extreme fundamentalism that the Taliban represent; that doesn't mean they are not muslims or are apostates. Don't confuse a natural desire for the end of conflict and for a peaceful existence with a desire for a return to the Taliban to power.
How many women did you speak to while you were there, by the way? Particularly those trained in a profession, such as teachers or doctors? I would be curious to hear of their enthusiam for the Taliban.