I believe that law takes it into account. If you approach the intersection and there is an approaching vehicle that has a reasonable chance to collide with you if you proceed, then - by definition - intersection is not clear and you are obliged to stop. Let alone the fact that in the absence of 4-way stop that vehicle may have the right of way.

If restricted visibility does not allow you to assess whether the intersection is clear - stopping always is also the right thing to do.