This is posited as a "next generation" magnetic memory, but lets imagine this effect (chirality control and sensing of tiny magnetic cells) ends up working perf

This is posited as a "next generation" magnetic memory, but lets imagine this effect (chirality control and sensing of tiny magnetic cells) ends up working perfectly, ie the sensor is cheap/trivial, and so is flipping the chirality. Doesn't this still leave us with just slightly more dense hard drives? Aren't they still abysmally slow and have long seek times? That seems more like a minor progression rather than a generational improvement.