All good points, but you are explaining why this research is not a landmark development. Most research, however, is iterative. Get a simple step working, which

All good points, but you are explaining why this research is not a landmark development. Most research, however, is iterative. Get a simple step working, which contains a bunch of simplifying assumptions. Then slowly try to remove those assumptions. That takes time and effort, and we publish each of those steps, and call them "novel".