Ashley, I understand why it's happening, I just think that not only is this majorly confusing, it's not ideal as a default.
I am beyond doubt that changing it would break a whole load of things. It's actually really nice that you can tell if an object is sitting on a platform or not for example without having to sink a detector 1 pixel down, it's just the wording is misleading.
p.s. I might add, overlapping at offset is brilliant, a strict version would be sweet.