In my opinion, this is not an exploit at all. The embedded blocks still need engineers, mechanics, etc. They still count towards weight. The still cost money and resources. As the previous poster says, you sometimes need to use this method if you want your built and fitted ships to look decent as well as have decent acceleration and agility, shields, cargo space, etc. etc. Please do not "fix" this. AFAIK the "random" AI ships use this "exploit" quite a bit anyway, so it is not as if we "get one over" on the AI by doing this.