^I don't think it's about learning to trust the character so much as it is about introducing the concept to a new audience. If the viewers don't know about the Phantom, having a new Phantom who needs to learn about the legacy is a good way to provide exposition. Both this new miniseries and Phantom 2040
have used the same idea, a teen or young-adult Kit Walker who wasn't raised by his biological father and thus knows nothing of the Phantom legacy until he's asked to take on the mantle.
Of course, there's also the approach the Zane movie took, treating the Phantom as an already-extant hero and having another viewpoint character learn about him.