Disneyland Enforcing Fastpass Times

In case you haven't heard, it's finally happened. As of last month (February 19th, 2013), Disneyland has begun enforcing the Fastpass times. From now on, riders who show up before or after the designated time window on their Fastpass will not be admitted to the ride. Before, riders could stack up all their Fastpasses by getting a new one every hour, allowing them to skip the line multiple times in a row. This new rule will prevent the Fastpass line from becoming too crowded, and riders from abusing the system.

Personally, I don't know how I feel about this rule. Disneyland has started cracking down on scalpers selling two-day passes, which is understandable, because they're losing potential money in that situation. But if a guest took the time to perhaps collect a Fastpass before lunch and returned just as the clock expired, why should they have to wait all over again? What's the harm in letting someone have multiple Fastpasses, free to return to the ride when they feel like riding? Disney World implemented this rule a while ago, and just now they're enforcing it here in California. I wonder why the sudden change-of-mind.