I thought it was just a Sword in the Stone reference.
I wouldn't think so. They've already had the Monty Python shout-out to the old Sword in the Stone bit in an Origins random encounter, and besides the statue being of stone and there being a sword in it, there aren't much parallels.
And it seems to be hinting towards rather something big. I mean, it's in the Fade (possibly near Skyhold), it's probably Dirthamen, it's near Mythal, it's gushing blood...
Then again, I was convinced that the statues in the Western Approach and the relevant codex entry were about the Titans, until someone pointed out all the Transformers puns and references in it. 
I appreciate the shout-outs, but I can't stand when they're mixed up with theory-crafting.
It leads to lovely theories collapsing like a deck of cards. No reason that they can't be both a shout-out and part of the actual lore, but... 
And the theory about that area of the Fade being a reflection of Skyhold makes sense, because when you scrape away the human fortifications, you get ancient elven bastion. And sure enough, the place looks like it's crawling with statues of the Creators. 