Unlike other areas that allow the loading and saving of templates, the fee profiles are referenced by actual transactions. So if you open the Transactions dialog on the Players tab (or edit a player and look at their tournament history), you can see not only what someone paid to buy-in, for example, but also which buy-in profile was used. If you were to load a fee profile template after performing any transactions, you'd lose those associations. Not necessarily a deal breaker, but a drawback.