Evolution is highly path dependent and stochastic, so I’m not sure your logic follows.

Eg, the laryngeal nerve in giraffes is ridiculous — but having gone down that path before their current form, there’s little way to fix it. They’re now stuck in a local optima of long necks (good) with poor wiring (bad).

Yes it it path dependent; my example alludes to it. Birds benefit from being able to sense the magnetic field for navigation precisely because they evolved the ability to fly, and the endurance to do that over long distances. In that context, not losing your bearing is a fitness advantage.

Vision has evolved numerous times, with estimates suggesting eyes or light-sensitive spots have appeared independently at least 40 to 65 times, possibly even 100 times, across different animal lineages.

Hearing has evolved numerous times independently, at least six times in major vertebrate groups (mammals, lizards, frogs, birds, crocodiles, turtles) for airborne sound and at least 19-20 times in insects

Vision and hearing have evolved so many times because they give an absolutely huge survival advantage.