The difference (like Manticor said) seems to me too in what you posted (or cited from the mail: "every member with a lvl80 will get 40-80 AA points") and what Tarib wrote (both forum announcements in english and german say now: "all lvl 80s on any membership accounts").
Giving only 80s the additional AA, will keep the low level AA inbalance (though it will help with the gap of old 80s without much AA) and means quite a different thing than giving 40-80 AA points accountwide where the player can choose to whom and how to distribute (with good or bad points). I have not suggested the "lvl-1" once (according to the introduction date of the script) application of AA to everyone without reason and i hope you see now, that it was NOT for selfish reasons.
Still: This is NOT a "complaint, qq or whine" (tm), but i hope it illustrates the point further up about communication and from others about feeling "tricked" (for example people who resubbed because of their low level chars must rejoice now). And clarifying this (but i guess you kind of did just that further up ) will help a lot with the decision, if people use offline levels now before the 29th or not (the lower the char level, the less stress though). I am also not blaming you for citing or Tarib for posting as he did, but something obviously went wrong there on your side...