Even if we are only repeating ourselves, it is the truth, is it not? At times you may need to be gentle and make them aware that perhaps the most direct line of questioning is not the most fruitful.

[at least, that's what lune does. gentle direction a different course if there's only an argument to be found]

But you are not incorrect. Frustration may make them more ripe to be consumed, but if one is not frustrated then they may be complacent.

As in all things, the answer may very well be balance.