Not necessarily, there are still lenses being produced today with vignetting, especially wide open. Avoiding vignetting is a trade off between complexity, cost

Not necessarily, there are still lenses being produced today with vignetting, especially wide open. Avoiding vignetting is a trade off between complexity, cost, weight, and other optical flaws. That said modern optical design and manufacturing has made it a lot easier to have nearly flawless (clinical) designs.