And it didn't come to your mind that that might be ... well ... a balancing decision?
Think of it as synergies between moves in card games: get creative and use it to your advantage. If anything, it would be a missed opportunity if I was not able to interact with charmed enemies in the same way as I can with player characters.
As you could see in my original post("Not sure if this was intended."), I did consider it being a balance decision. In a way, by making the spell(s) the way they did, it's less stronger but also less intuitive. I don't think there is nothing wrong with that if it was intended.
Also, as a slightly unrelated criticism, spells like consecrated ground should tell you the current time left of the spell while it's active. Right now, consecrated ground only tells how much time is left for the HEAL received from the spell and not how long the actual spell itself will continue.
I would like to say again, these things are not really big deals. Just small little details that might add to a polish a very small amount.