Not familiar with the properties of this mulch. One comment: Many things will improve water retention and aeration for awhile (Cheerios?). ;o) From the ridiculous example, you can see that I think it's important that these qualities are guaranteed for the expected life of the planting when you use the material in container soils, along with the assurance that it is not phytotoxic (poisonous to plants). Let us know what you find. Most forest products, other than conifer bark, have properties that make them less than ideal in containers, but perhaps you're on to something.

Al