>>44253182USUM wrote him off unfairly. For being a character who wants to strengthen himself to protect his family from ultra beasts, he doesn't show it at all. Once again leaving the Lusamine saving to you and Lillie it's just so unfair.
At least make him more active during the mission to rescue Lusamine and Nebby. Or just give him an ark where he enters ultra space with you and fights off some beasts with his Silvally or something