This seems like a lot of work for something that seems little more than greenwashing: unless the "reinforcement inserts" are less than a third of the total weig

This seems like a lot of work for something that seems little more than greenwashing: unless the "reinforcement inserts" are less than a third of the total weight a reinforced 60% recycled content bag would contain just as much non-recycled paper (aka trees) as a 40% recycled content bag without the inserts.