[somanytta]

The law is clearly not preventing vendors from selling X, its preventing them dumping it if they can't sell it.

Not sure how people can't see this difference. Preventing companies dumping or disposing of their (harmful) waste (in an unregulated manner) is pretty common practise and generally agreed upon good thing.

[wyager]

Read the article, or any of the stuff I quoted. This is more widely-reaching than "you aren't allowed to throw things away" (which would also have a sumptuary effect, although more indirect).