No it's a non needed complications to the story also illogical because even though he is stronger than jean now he is not strong enough to not be affected by the phoenix force.its objectively better to assist jean to make a amend with the phoenix force.
This story will be ruined if you set a path where he wants more and more power to defeat stronger enemies that only shows how weak his character actually is that even having nate Grey's power he needs Phoenix to help him further the story