Islam critiqued finds wisdom in silence; appropriateness of curiosity?

In answer to the video "Was Muhammad a False Prophet?"

With the overarching Quranic notion of keeping God's directives simple and not burdensome, one can appreciate why the Quran tells the audience not to insist on investigating the unimportant things or minute details of a story. It diverts not only oneself but also others from the moral and spiritual import of the narration 18:22.

Similarily the Quran warns the Muslims not to ask questions about the things regarding which the Sharia is purposely silent 5:101 because such questions call for answers that tighten the limits of a directive, and then people are not able to follow them and as a result invite the wrath of God, as what happened directly and indirectly with the ISraelites. God wants that a directive be followed the way it is given. Difficulties should not be created by asking to explain what is concise and by asking to limit and restrict what is absolute and in fact

5:102"A people before you indeed asked such questions, and then became disbelievers on account of them"  

2:108"Would you then ask your Prophet such questions as were asked of Moses in former times? and whoever adopts unbelief instead of faith, he indeed has lost the right direction of the way".

The simplification of the Sharia/Law leaves room for human common sense and judgement, allowing different nations and communities to frame laws for themselves to meet new and changed situations. The Quran has laid down a handful of laws as explicit, while most provide a foundation and philosophical framework by which things can be negotiated, as long as it is in accordance with the principles of morality and wisdom laid down in the Book. The Prophet is reported to have said:

“The most sinful person among the Muslims is the one who asked about something which had not been prohibited, but was prohibited because of his asking”.

He further said

“God has set boundaries, so do not transgress them; He kept silent on certain things out of mercy for you rather than forgetfulness, do not ask about them”.

As is clear, the Quran doesnt prevent the honest debate and search of knowledge. Many Quranic verses begin with questions that are stated very compactly and their real purport becomes evident through their answer

2:189"They ask you concerning..".

The verse 5:101 rather warns against questionning that could lead to unnecessary complications in religious laws. In addition, and as demonstrated through the Israelites' example, such questionning also stems for shallow belief and hypocrisy. Asking questions, politely humbly with pure intent is never disallowed. The angels were permitted to voice questions to God directly 2:30. No religion says, almost at the end of every argument for its truth, to reflect, ponder, think for themselves. It invites sceptics to bring forth any constructive criticism and argument.

As just stated, the epitome of that principle is the angels' questioning God's plan for creation, questioning God Himself and yet they arent condemned at anytime. Justified curiosity is not wrong but even encouraged

21:7,16:43"ask those who possess knowledge if you do not know”.

In 58:1 a reference is made to an incident in which a pious woman had to face a severe difficulty regarding a religious issue; instead of becoming frustrated and showing distrust in God, she presented her case before Him and His Prophet with purity of intentions. Her difficulty was resolved and her case set forth as an example in the Quran: that of a person who adopted the correct attitude when troubles came her way.