Anomaly Between Erect Posture of Humans and Their Spine Structure

In continuation of my observations, earlier posted in FB, about the apparent anomalies of Mother Nature in the design of human physiology ,  I would venture to add the following...

Is not the vertebral structure of human spine an evolutionary oversight?

It's perfectly suited for a quadruped animal or for a reptile.

Without such a structure the degree of flexibility such life forms need in order to move about and chase their prey would've been seriously impaired or even been made impossible.

 For humans with their vertical posture, such a design is a liability,  unnecessarily engendering a host of diseases due to the gravitational weight of the body parts vertically positioned above the plane of the vertebra concerned. (The padding with spongy material, namely the wonder material CARTILAGE' which is almost a SQUEEZABLE bone, on the lower and upper joints of the vertebrae, which exists now, is not enough to last a life-time. On the contrary for quadrupeds the weight of the vertical structures doesn't arise as the body is horizontal and the cartilage effectively does its function lifelong).This fact seems to have been ignored in the evolutionary process from quadruped monkeys to semi-biped gorillas and chimpanzees to fully biped homo sapiens.

To bend the upper part of the body to touch the ground, ideally humans are expected to use the hip joints (incidentally as realised by the ancient Indian sages who spelt it out in the famous Patanjali Yoga Sastra) and not the vertebrae.

So a straight heavy bone is ideal as the human spine with ribs branching from it.

In the case of an accident involving spine the extent of injury would almost be the same  in both the configurations. Perhaps  the single bone configuration scores better because of the replaceability of the bone with a steel tubing with provisions for jointing the ribs. A vertebral structure demands replacement of each vertebra with jointing to the vertebrae above and below with provisions for axial movement plus the horizontal jointing with rib bones on both sides.

 Undoubtedly in both cases the injury to the Spine is bound to be highly critical as it is the duct that the bundle of nerves known as the Spinal Chord that carry the brain signals to all parts of the body is securely ensconced...

My contention is that Nature is in the process of correcting it's evolutionary mistake. I suppose the number of vertebrae is already less than that of a 4-legged animal of same length of backbone and certainly far less than a reptile of the same lenth. 

It may take a million years for man's spine to evolve into a non-vertebral one...