Yamaguchi basically did the same think in 92 by training at another facility for most of the time she was in Albertville. It was a pretty big deal back then because most competitors used the official practice facilities up to that point. I believe she stayed in the village for part of the time and roomed with Nancy, but she really did keep to herself. Harding on the other hand arrived late for both Olympics in 92 and 94 to train at home. Kwan didn't stay in the village in 98 but did in 02. Every athlete has to try to find the optimal training and sleeping environment to increase odd of a top performance. Obviously there are no guarantees as above examples illustrate.