Maybe this will clarify it for you:

From NWA.com Skyteam Frequently asked questions page.

http://www.nwa.com/skyteam/sktfaq.html

How will SkyTeam benefit me as a WorldPerks member?
WorldPerks members can now earn and redeem WorldPerks miles on all nine airlines throughout the SkyTeam network. You now have more travel options, with the schedules and destinations of five additional airlines serving all your travel needs - for business or pleasure! All miles earned on any SkyTeam partner will also count toward WorldPerks Elite status. See SkyTeam Network for destinations served by our SkyTeam partners, as well as which SkyTeam partner flights are valid for WorldPerks accrual and redemptions.

But you are right, it does not specifically state that you earn 100% EQM.