Source code is still there. Acer still could have used it. Assuming this is true, Google threatened Acer with removing access to the always closed source Google apps and Play Store. It is a hardball business move and not exactly consistent with the shiny happy feel good part of the open source philosophy, but doesn't really make Android less open.
AOSP is OSS. Google's proprietary apps, for their propreitary services (GMail, Google Calendar, Google Play), are not. Why d you so wrongly act like Google has to provide those applications? Especially if someone has forked Android to compete with traditional Android offerings?
The comment I was replying to was about Google touting openness. I was merely saying that this move was entirely based on parts of Android that were never touted as open.