Yay! They needed to clarify the teleportation thing! I'm surprised they didn't catch that in the playtest of the first set of rules.
I'm also glad they are continuing to give us their rationales for the changes.
The problem with the teleport save thing, though, is that if you are pushed off a cliff and save, you fall prone; but nothing happens if you save vs. teleportation... presumably a more powerful forced movement mode.