No he doesn't. lrn2read.
Yes he did. Here are those quotes again:
"However,
during the next minutes over Europe, their position chanced quite a bit, Acaba moved little more left and Swanson moved out of the truss, but Acaba was still the most Earth-faced positioned."
"timing and location indicated the spacewalker as Joe Acaba working most Earth-faced
during these seconds of recording."
Vandebergh is obviously saying that he is able to match the timing from the helmet cams to the timing from his picture, to identify the astronaut down to the second.