In essence, this harkens back to the old paper ticket system, where you could grab another ticket after 2 hours even if you hadn't yet redeemed an earlier pass. I'd venture to say even in low season, the amount of FP you could get with the now retired system going one at a time after your initial 3 would be about the same, given that you had to space your first 3 out as well. If you were to arrive at rope drop, you could prob get through the whole park between Genie+ and/or standby, depending on the park hours. Sooner if you splurge for a a la carte option.