Is it still in the wall if you exit and load the save? I would not expect the game to save the coordinates of all the data clusters, though it is possible.
There are some clusters--including a TK ball--at some platforms around where Safeword is supposed to be. But it's a bit north of where they're at on the mapCorrect me if I am wrong, but isn't that in the area where the clusters on the platform are in the sky? I'm almost certain that it is in the same spot or just off a bit.
LolI accidentally launched one in the air and it never came back.