No, nothing could be omitted by current rules.
I did consider making both WPS line and some of the skills to be optional, but that was based on my idea of changing formatting to include the new “Details” tag - the idea I had to suddenly abandon (see post 364). Due to that I either had to take a few more days to think about it or keep things as is and start working on Compendium. I chose the latter.
Simply making WPS Skills: None optional isn’t happening. It would break the compendium’s visual uniformity. To compare that abandoned “Details” tag format was hiding most of the skills info under the details tag, so skipping a line or two wouldn’t had broken the uniformity. A possible solution is uniting WPS skills with passive skills.
Making some of the minor skills optional is actually debatable and I’ve been considering it (we don’t list actual passives like Brute Force or Anatomy of Murder anyway, even though they could be an important part of the build). But no decision have been taken yet.
Honestly, I do think it would be best to have a form like that:
Damage: Type 1, Type 2
Active Skills: Skill A, Skill B, Skill C, no omissions.
Passive Skills: Aura 1, Aura 2, WPS 1, WPS 2, possible omissions
Devotion Procs: Proc 1, Proc 2, Proc 3, no omissions
But I think it’s kinda late for that. I mean I was prepaired to re-format all the existing submissions myself three weeks ago, but since then the number of submitted builds had increased. I’m also not sure build makers would appreciate another of my sudden policy changes.