You are correct in that this does not use propellant, however the Earth would need to be nearby for this to be viable for any sort of space travel. Perhaps mayb

You are correct in that this does not use propellant, however the Earth would need to be nearby for this to be viable for any sort of space travel. Perhaps maybe keeping a satellite in orbit or doing orbital maneuvers, but even then the amount of thrust is so small that it would likely not be usable. So unless the review team comes back and says they've eliminated magnetic interference then we're probably back to square one.