Apostate prophet uncovers reality of sharia; a soulful purification?

In answer to the video "Walking Away From Islam"

Allah has not ordained a soulless sharia concerned only with the body of deeds.

The Quran constantly parallels internal with external purity, discussing issues of social laws side by side with laws of worship. Muslims are warned not to fall into the error of those before them, who neglected the spirit of the Sharia for soulless external rituals and subjective legal hair-splittings.
Allah has restored the Sharia to its original simplicity in order to lighten our burdens 2:286,4:27-8 because

"man is created weak".

This means man's weakness is due to the fact that he cannot by himself find the true path, he is in need of Allah's guidance. That is why the preceding verses speak of Allah's will to guide mankind, turn to us mercifully and lighten our burdens. 2:286 also implies that Allah could burden mankind with a difficult Sharia as a form of punishment as was done with the Israelites and as plainly stated in the book of Ezekiel quoted above. When we create an innovation and complicate the Sharia on ourselves, then we will charge ourselves with greater burdens than God asked of us. God allows this to happen as a form of punishment.

What Allah demands from us is not unreachable and He does not impose what is beyond our power and understanding. This is why Allah expects us to answer the call of religion with

2:285"We hear and obey".

It is an unconditional declaration of faith and obedience to a system which is not meant, as already said, at narrowing down man's feel of life through ethical discipline and other teachings of the Quran but on the contrary, to enhance it by deepening his consciousness of right and wrong 20:2.

It is important to note here that the core tenets of religion have always remained unchanged and shall remain so; however, as far as the rituals and customs are concerned, God has prescribed them separately and differently in the course of human history. They are trials to determine who turns away from the truth by showing bias and prejudice to these rituals and customs and who becomes the real seeker of the truth and accepts them in every form that they come to them from God and His prophets. This is precisely why the Quran often states that the people, regardless of their chosen spiritual ways will be judged according to their faithfulness in abiding by these core tenets

22:17,5:48"and if Allah had pleased He would have made you (all) a single people, but that He might try you in what He gave you, therefore strive with one another to hasten to virtuous deeds; to Allah is your return, of all (of you), so He will let you know that in which you differed".

That 16:101 is speaking of the previous scriptures can also be inferred from 16:103 where the person pointed to as the probable secret teacher of the prophet was suspected of teaching him the stories of the Bible as reported in the traditions.