Should volks wagen management allow employees to criticise the company without fear of retaliation? Could volkswagen management benefit from allowing such criticism why or why not?

Volks-wagen case study

A case study of volks-wagen of what the legal and ethical obligations do employees have to refrain from bad mouthing their employers, in a fit of pique, especially on the firms own website.

1) Should volks wagen management allow employees to criticise the company without fear of retaliation? Could volkswagen management benefit from allowing such criticism why or why not?