Actually, it has always been the view of Capitalism.
Manufacturers stop production when the products fail to sell.
Clearly, a vastly superior process to any color films ever manufactured or manufactured today for that matter. Lack of interest, expensive and faster results with modern films. And your assertion may have legal implications, too. In very few cases. The fact still remains, that the company offers many different films and no consumer could argue that the discontinuance of one film impacts them in any serious way.