what's the status here?

It's a great idea. The challenge with adding Keyword Destination URL as a classification being sent back into Analytics is that it is a dynamic attribute that can change at any moment -- whereas with Ad Destination URL there is an explicit 1-to-1 relationship between the ad ID and the destination URL (if you change the URL, you are actually deleting the old ad and creating a new one with a new ID). Not saying it's absolutely impossible, but because any user can change a keyword URL at any point ...

Completely agree. It's rare I find these numbers useful, but common that I need more colums. So these additional numbers are unwanted and usually just add noise.

This functionality (along with all other paid and organic metrics viewable side-by-side) now exists in SearchCenter.