Is it possible for evolution to continue without technology?
Some alien groups seem to use craft that are biological and therefore respond to telepathic directions.
Is it possible that humans need to evolve emotionally and mentally?
Perhaps the Earth human biology with some 90% currently unused DNA is actually able to be functional in a very wide range of environments. Plants and animals can do that
Perhaps the required development is more spiritual than physical.
Personally I avoid implants including etheric. Even if the implanters seem friendly, I prefer to do without their technology.
In some alien discussion groups there is the proposition that alien invaders need to legitimize biological hybrids to manage the large biologically human population.