Quote from XinhuanThe game isn't as smart as you think. The game always loads all 40 copies of the library. It's the code in the libraries that we write that checks to see if it should overwrite the version already loaded (basically a version check), or discard itself to the garbage.
A-ha, I didn't realize that. I'm glad addon writers are more with it than the game's addon checking is, then. Seems to me that onliy adds a point in favor of running with only one set of libraries across the board. The downside is a case where an addon needs, or at least expects, an older version of a library that it normally chooses to package instead of the newer version, and breaks because of a change in the newer version of said library. However, if two versions of the same library cannot run at the same time then that problem doesn't go away just by installing in embedded mode.