It won't leave any taste once it has all broken down into water & O2. That makes it good for food containers. I think part of the problem is cost and part of the problem is, it is unstable. Not in a dangerous way, it just decomposes over time.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk