The reason why so many "experts" are critical of pioneers and ground breaking technology is due to their ego. The ego exists through separation so the more the person criticizes and ridicules, the more they are separate and the stronger ego becomes.

The ego believes that through negativity it can manipulate reality and get what it wants. Of course, spiritually speaking, this process is unconscious.

To criticize and try and bring down Elon Musk is insane when his businesses have the potential to combat climate change and put us on a different trajectory.