3 weeks to decompose water bottle

I read it too. A story from Australia. It sounds so good. But I question its wisdom.

The Choose Water bottle has an outer lining of recycled paper and an inner lining of composite material. The bottle “can fully decompose within 3 weeks when left in water or landfill and can be eaten by sea creatures.”

Surely the solution is not to encourage disposal, but instead to collect and re-use ?

More sea creatures will be saved that way than by decomposition.

I have doubts too about shelf life and product integrity, but what about the label and the cap ?

Apparently, “the steel cap on the bottle will also rust and fully decompose in about a year.” I’m not sure that can be true or desirable.