Even though the rules were technically on the books, they need to be applied consistently in order to ensure that athletes are fully aware of exactly what the selection criteria are. In other words, it DOES matter what the USFSA's historical actions are, and that historically they have never done this, because their actions give an impression of how they makes these decisions and athletes may rely on that impression.
For example, my friend encountered a situation a while ago where she was routinely sending in her mortgage payment to the bank 2 or 3 days past the contractual due date, but the bank never penalized her for it. Then the bank randomly did start to penalize her for it. We learned that apparently, the bank was NOT legally allowed to do that (even though the due date was in the contract), because the bank's ACTIONS of routinely accepting her late payments without penalty was considered a implied "waiver," and if the bank wanted start penalizing her for late payments according to the contract, the bank needed to NOTIFY her first that it was going to do that.
For example, my friend encountered a situation a while ago where she was routinely sending in her mortgage payment to the bank 2 or 3 days past the contractual due date, but the bank never penalized her for it. Then the bank randomly did start to penalize her for it. We learned that apparently, the bank was NOT legally allowed to do that (even though the due date was in the contract), because the bank's ACTIONS of routinely accepting her late payments without penalty was considered a implied "waiver," and if the bank wanted start penalizing her for late payments according to the contract, the bank needed to NOTIFY her first that it was going to do that.