At this time, the “aura” skills that certain characters have (foot knight, handmaiden, huntsman etc) are just too limited in their radius to really be useful. Anytime you’re that close to each other is… rare. Even in a well coordinated team. And many times being that close is not only rare, it’s also incredibly sub-optimal and/or outright dangerous.
Now I’m not saying they need to be massively bigger than they are at the moment, but increasing their radius would make them something to actually care about rather than more of a “oh well it’s nice in those very few situations where we’re that close… I guess”, type of thing.
I would say that making the radius twice what it is now would probably be about right. But maybe even 1.5x what it is now would be enough (though I kind of doubt that).
That would at least allow your party to remain “close but not too far” and still get the buffs, without having to essentially sit on top of you to get the buffs.