General Coat Patterns Questions

I guess, to me, it reads as a bit contradictory. At the very beginning, it's stated that unusual markings and patterns are allowed, they just have to be realistic colors, and then further down it's said that there are specific markings allowed via dog ancestry only (which I'm not contesting, that makes sense to me). So I guess my big question is what is the line for "unusual" markings/patterns. I know someone struggled with a character that had a spotted face bc the spots were too symmetrical but at the same time, symmetry does occur in nature, which (to me) is where the subjectivity comes in.

I appreciate the time y'all take to answer this, I know it can be a point of contention <3