Agreed.
Same, I bought KSP in July 2013.
All in all, this DLC idea is an absolutely horrible idea, as a free update or a free DLC, it would be great, as a paid DLC, it's a terrible idea.
Even if SQUAD does release the DLC as a paid DLC, which I'm hoping will not happen, using the Paradox free updates when a DLC is released model would be great (but still not as good as releasing the DLC as a free update.)