According to "Soda's a Problem, but ...," which is a main reason the ban on large sodas failed to be approved?

The main reason the ban on large sodas failed to be approved is because of the number of contradictions within the law made it impossible to enact.

Explanation:

'Soda is a Problem but ... ' is an article written by Michael Bloomberg where he states about the laws being implemented for the ban of large sodas. But nothing worked out the way he thought it to be. The ban on large sodas wasn't approved mainly because of the opposed ideas.

The contradictions made it difficult to bring the law in action. Despite making people aware of the fact that intake of soda in large quantities is bad for this health, the ban on soda failed to approved.