The ACTUAL answer to your question is this: see how the draped gown cascades down directly from her arms? The developers realized that, if it were a real statue, her arms would need supports, so they figured that the original masons would have used the flowing shape of cloth to support her arms, like Cristo Redentor, which has sleeves hanging down to cantilever its arms against its torso.
The ACTUAL answer to your question is this: see how the draped gown cascades down directly from her arms? The developers realized that, if it were a real statue, her arms would need supports, so they figured that the original masons would have used the flowing shape of cloth to support her arms, like Cristo Redentor, which has sleeves hanging down to cantilever its arms against its torso.