Playing them as if from your hand would imply you could choose to play them into a conflict or at home, your preference.
Card seems really cool. Being out isn't necessarily +1 fate each turn because a lot of players pass early anyways, but it does mean that you can snag that fate while comfortably playing what you wanted. It also hides your intentions going into conflicts really well. Does he have 8 fate because he's gonna play Kachiko, or has he just not played his province characters yet?
Hinomura's right in that holdings definitely eat up a valuable slot, but I think it's action to refill a province mostly redeems that. You can eventually see all four cards, just not optimally all at once when you're making your overall plan for the turn. It hurts, but not so much I wouldn't play this in pretty much every deck I could.