I wouldn’t say that computers have helped anybody because for all people, regardless of their abilities, a computer hinders the immersive aspect for all learners. It may be easier to deal with if one is highly visual or auditory, because for a visual or audio learner the most important need to learn is to see or hear the material.
Somebody who is a kinesthetic learner, regardless of his ability, would be at a disadvantage because can’t use his modal of learning to learn.
I think you are quite correct. The computer/internet seems to impose a lot of mental limitations and narrowing in the learning process, offsetting what I used to interpret as the medium’s virtues. It’s becoming gradually more and more apparent to me, the more I’ve interracted with young people who’ve been molded by all this.