A theory's simplicity is not expressed by counting parts (pole+x=y). Both of the theories I've looked at are equally simple. One has an existing pole style and an empty-hand method created from whole cloth. The other has an existing pole style and an existing empty-hand method that is adapted to the pole. Neither is more complex than the other, and each requires its own assumptions, given the gaps in available evidence.All assumptions introduce potential error and so a more complicated theory giving the same outcome is more likely to be wrong than a simpler theory. This is why simpler theories are preferable to more complex ones.