I think that is what Miyazaki’s philosophy is. Not everybody needs to be a parry god, nor do you need to defeat the boss naked with a broken sword in order for it to “count”. The souls games and their contemporaries are as difficult as you want to make them. If a boss is too hard, come back when you are overleveled and stomp it. Or use some cheesy build to trivialize it. That’s what he means by “fac[ing] that challenge” and “overcom[ing] it in some way that suits them as a player”.