On page 124 of The Anatomy of a Golf Course, Tom Doak writes, "Fairways cut in irregular-looking curves not only look more natural, but assist the player in locating a ball once in the rough."
Certainly, such curves are different from "frills" or squiggles. Even squiggles, though, could help the player in locating a wayward ball. That could help maintain a greater pace of play on a "bowling-alley" course.
That said, I hate fairway squiggles on most courses. If I want to see something trite, I'll watch a Disney movie.