Almost done with FoL - is Kharkanas considered apocryphal, at least in reference to the timescale?

Edit: I'm an idiot. I completely spaced that this is answered in the forward to FoD. Thanks for clearing that up fellow readers!

To explain my query: In the main 10, many references are made to several key events which happened hundreds of thousands of years ago. The Jaghut/Death war, the Imass/Jaghut conflict(s), the T'laan ritual, the sundering of Light and Dark, the founding of the Warrens, the ascension of Mother Dark, the creation of Dragnipur, the war with the Forkrul Assail, the reign of Kallor and the fall of the CG, etc. There's a lot of time for a lot of things to happen, but according to FoD/FoL all of these earth-shattering events happened in what, 10 months? I'm all for writing about key times in history when time seems to accelerate, but this is excessive.

I'm on Chapter 23 if it matters, but this meta question seems outside the scope of the books. Has this discrepancy been discussed before? I'm leery of searching until I finish FoL in case of spoiling something I haven't come across yet.