To answer the question where the SE versions needed? Of course not.

Look, we watch films like Jason And The Argonauts these days and we acknowledge that with today's technology certain effects would be more convincing. But those people did the best with what they had at the time - indeed, they excelled with what they had at the time. Exactly the same with Star Wars.

I think when an artist has created something, it should be taken away from them. Because the true artist is never truly happy with what they create. They are always striving to better themselves; it's what keeps them trying, and it's what makes them better than so many mediocre artists who are happy to churn out substandard product.