I assume that anyone complaining about these trainers on ecological grounds only buys good quality shoes (never trainers) that can be re-soled and repaired and that will last for decades. Although even those will be beyond repair eventually.
Almost every shoe we buy reaches its end of life within a few years and is never recycled. But people never think of shoes or trainers as “disposable”. So, although my knee-jerk reaction was “ooh, shoes which only last 100km, that can’t be good,” making the disposability explicit, and building the renewal of the materials into the package, seems like a step forward.