That would be like giving it modern internal parts so that the car goes faster than it could have been possible when it was manufactured. In the case of film, you are using technology that never existed back then to give it a clarity and a level of realism that it never had in the first place. The matte lines and film generations are an important artifact of its original production, because that's how the film was. It wasn't clear and seamless and you couldn't see the effects work as clearly as a modern digital composite--and that's an important facet of the film to remember. It had generation grain and matte lines and opacity issues and the composites wobbled around and never timed the same colour. It's an important distinction to its age. The movie comes from that period.

Removing this is removing part of the film's identity. Souping up a classic film or car to perform far better than it ever was possible when it was actually made is fine, but it's not a true restoration in the classic sense, it's an enhancement, and that's a distinction to recognize.