SoC should be treated as physical attack. It should be parried, dodged and etc. It uses physical crit and hit. Things you talking about been working in way you describe for a short time after 1.3 and been returned back ~1.5. This server 1.12 in terms of mechanics and SoC procs working as physical attack.
LiranaPlease show me when they changed this
"Seal of Command - The damage effects can now be resisted instead of dodged, blocked, or parried. " (PATCH 1.3). I've looked up every Patch until 1.12 and didn't see any change of this.
You have posted a not well updated wowwiki Site, which contains wrong information because
"However like other physical attacks, Seal of Command can miss, or be dodged, parried, or blocked. Judgement of Command can only be resisted. " is old and pre 1.3.
But if I am wrong, correct me !
regard