I've not been following the trademark policy draft discussion, but note that Labs is explicitly not part of "Wikimedia sites" according to the definition of this (formerly unknown) term on the privacy policy draft: https://meta.wikimedia.org/wiki/Privacy_policy#A_Little_Background: «excluding, however, sites and services listed in the "What This Privacy Policy Doesn't Cover" section below [...] tools and sites, such as Wikimedia Labs».
Nemo