I mentioned it on the official forums and I'll mention it here: Where should we put items that are at best guesswork and conjecture?
Separate article, almost as a player guide? Section of article below the tables?
As Vanden's icon pack illustrates, the iconic system needs to be overhauled and corrected in at least over a hundred places. There are many places where symbols are contradictory, don't follow the convention for other similar powers, or the symbol components to make the correct icon exist, but haven't been put together yet.
Jason Olmstead (UI guy at PS) filled one of the longest open positions they were hiring for. I imagine the backlog of work and ideas they need him to implement will take precedence over fixing power icons to be consistent. Especially, since a player-made solution is available. It would seem to me, that icon inconsistencies are a low priority, quality of life, fix.