It really can't, at the end of the day, which was the major point raised during the QA. Also, you don't need Admin rights, seeing as Chrome installation works without admin rights, and all user data is maintained on a user-directory structure.
It sucks, and nobody is happy with it, but at the end of the day it's the only thing that seems to be working.
It's terrifying. And while you could make a case for this "not being chrome's problem", the fact is that it's really hurting their user base, so they can't not do something about it.