Judgement decisions are very rarely classed as riding faults. This is a very contentious area as it covers situations where you thought something was okay and the examiner did not. What makes it particularly difficult is that no two examiners have exactly the same idea of what is okay and what isn't; so, for example, some examiners are quite aggressive in their riding and expect you to overtake, whereas others are more cautious and would not even give the time of day to filtering. If you demonstrate positive body language and positive & deliberate manoeuvring then the examiner is more likely to respect your judgement, than he/she is if you dither or show poor machine controls. In any event, it is important that you find out from your instructor what the examiner likes.