I don't think anyone claimed that the gate weave was a problem itself, only that its presence indicated that the transfer was not new, a notion which seems to have been satisfactorily debunked due to the credits having been optically composited.
Even if Speilberg were inclined to do this, I think he'd have a heck of a time creating better special effects than what's already in the movie. Jurassic Park's special effects hold up spectacularly well, in my opinion, not least of all because it used just the right combination of practical...