It's not load bearing. The house is small enough that it would technically be fine without anything under the trusses for the whole span (it's only 27 feet), but as it happens the new wall we put in will actually do a better job of supporting the trusses than the old one did, just because it's closer to center-of-span.

I don't think it's your vision in this case, I think it's just that you can't see the rest of the house to get an idea of weight and scale.

EDIT to add: In point of fact, since installing the new wall, my roof line is actually *straighter* than it was before. :P