Later I figured out that it made sense out of context since your PC was making their first major decision that would lead up to them becoming an Inquisitor, so any decision had to be made in a confident and authoritative manner. At the time though it was jarring.
Thing is in the case of mages .... nobody is listening. Sure it's the first important decision but the whole point of the game is that how things happen are not how the things are put on record. There is at least an option later on to say "I lied about it" (don't know where that one leads) and let Vivienne spy on them, which I always do, but still the game assumes in more than one case that you either utterly hate something or are in blind love with it. I wanted my middle option, or at least the same option but not expressed with such a vigor (playing with the British female voice), I half expected Vivienne commenting on my own dementia right then and there. I don't quite remember because I only allied with Templars once, but I'm under the impression that the lines there are somewhat more moderated.
As for the Wardens... what happened to "you are too few, you need help and protection" or "there is no way I'm letting you running near our borders when Corypheus can so easily influence you, we need to watch you". You don't even get to say that these were your intentions after the fact.
edit: Oh, and the mage quest lines are the prefect example of the intonation being all over the place. One minute you are the reasonable sort saying "well we did came for mages" and the next moment you are a passionate preacher in church.