hotcoffee- Just because they wrote that all members can reserve accommodations at affiliates that are a part of the program doesn't mean that the opportunity to make the reservation will be available. It is no different that being told a Bronze week can trade for Christmas or New Years weeks in Aruba, Maui, a ski week, etc.- it can happen, it has happened, but we all know that outside of Flexchange the stars have to be aligned for it to realistically happen.
As others have pointed out, we still do not know the answers of whether legacy points are < or = trust points and, assuming the former, if adding 1000+ trust points will allow you access to trust inventory with anything other than the 1000 points you just bought.
That said, since there is no rush to lay out ~10K and commit to an additional $400 a year in MF's, I think JoeZuke would be better off rescinding, see what pans out at least over the next few days (as Dave M hopefully will have an official response to this) and perhaps the next several weeks to see what other questions crop up. Joe, if you rescind and hold off you have nothing to lose, but if you go forward and things don't turn out like you were told you may be one annoyed owner.