I would guess Google probably decided they could no longer justify paying a licensing fee for EAS and then giving it away for free. Maybe if that cuddly champion of the users Microsoft would offer them a no-cost EAS license ("think of the children!") they would be able to keep doing it?
Exactly. If MS stepped up and said 'hey Google, here's a free EAS license' I'd applaud them for it (and diss Goog).