My conclusion, reading this post are the following:
1. Spirit Directed, means that there is a chance of an intepretation mistake, concerning a Biblical text or prophecy. They have always said that we are only DIRECTED with the Holy Spirit, in order to use that as an excuse for their flip flop doctrines and failed prophecies. So if someone comes and points out that they failed, they could easily say, yes because we are only Spirit Directed!!! Now with the new change, spirit anointed, it means that they have received the Holy Spirit, like the Christians in the First Century and immediately they had the gift to perfom miracles, speak foreign tongues, and to prophecy. With this change, WT is saying to their followers, "listen you guys, we are Spirit Anointed, so don't question us, or mess with us". The reason to proceed with this change is to strengthen their status and power over the rank and file.
2. The second change, Association, has to do with legal issues and mainly with their evil practice of disfellowship. So if someone is kicked out, they can easily claim that he doesn't associate with us anymore, saving their asses from the legal issues that they might occur, if they are an Organization, while Association is just a group of people that they are gathering together and share the same ideas.
Indeed WT is becoming more and more a dangerous Cult, and the leaders of the WT, they are only trying to save their asses from responsibility and any legal actions against them.