Honestly, whatever is decided in this (unless it's something uncharacteristically crazy) I'll be ok with; I just wanted to discuss it beyond just being told "it's just the way it is." You've done that so thank you. Now then, if the decision is simply that it's in the spirit of the other rules to not allow nudity outside of explicit then I'm fine with that, but if it is that universal of a decision then why not adjust the rules to reflect that spirit?
Also, if the rule-of-thumb for material being relegated to explicit is that a quick glance could get someone fired, why is my suggested solution of making a clearer NSFW part in the title and spoilering the video with an additional warning not sufficient? It would take more effort to do that than go into explicit.