Since we have no idea what discussions took place behind the scenes between coach and player, we can’t make an inference on if the decision can make Nebraska better or not.Selfishly, sure. If he wants to play, he wants to play.
Transferring after a redshirt season doesn't make him a better player, and doesn't make Nebraska a better team, though.
For the player, having a chance to get on the field or a new start can actually make him better. They only get 5 years to play (normally) before football is done forever for most of them. If he isn’t happy riding the line till is junior or senior season then good for him to decide sooner rather than later.