I’m not sure that Fandom list in the OP is reliable. I’m calling bullsh*t on this one:
The Wampa is shown in full form eating the carcass of the Tauntaun and approaching Luke, we see the battle between Luke and the Wampa with his arm getting cut off in full form as well.
I’d take any such online list with a pinch of salt, unless you’d confirmed it for yourself. For example the list of changes for the shorter cut of Heaven’s Gate on Wikipedia is wrong in almost every respect: https://en.wikipedia.org/wiki/Heaven’s_Gate_(film)