If the player is judicious and games the situation just right, they can use it where it really counts and not just to avoid getting slowed when stepping on a surface by accident, the worst case scenario.
You can turn them off... so long as you still have the inspiration when your turn comes around, which you may not, given how enemy AI seems increasingly cavalier about provoking opportunity attacks from you. You also can't use it judiciously for the right situation if those toggles are turned off, because then you won't use it at all... and the moment you turnthem on again, your back at the mercy of the AI deciding not to eat it on a minor thing between the end of your turn and the important moment you were saving it for... which means you can only really use it with deliberacy for attacks you make on your own turn.
Also, a quick test in the intro lets me add to this: The bardic die is used
Whether It Is Necessary Or Not.
This means that if you, for example, Inspire Lae'zel so that she's got better odds of hitting that Zhalk, which she is going to do on her next turn... and the imp in between flies up to, then away from Lae'zel on its turn first, provoking her reaction for seemingly no reason other than to do so... and Lae'zel swings at he imp, rolling a 19 on the die and being a certain hit even without the bardic die... the bardic die will
Still roll itself and add it to her attack roll against the imp... so then ,when Lae'zel's turn comes around, that Inspiration you gave her is already gone, and the whole thing was utterly outside of your ability to control it at all.
True story ^.^
