Hmm, i don't mine the ritual spells being cast in less then 10mins, cant stand around in game all day that's for sure. And i get not having Don/Dof out of combat, their is no reason i can think off why you couldn't do it. Unless your in a timed trap room or something. However if your in combat or the turn timer is running then their should be limits to what you can do. Their were such limits in bg1 and 2 from memory so its doable.

Ill be curious to see if they have plans for these things or if they have just thrown them out the window all together.