It's just that the number of images is not really a good way to fairly evaluate the effort of an update. Especially for an event with many charateres already occurred in other updates, at in an already used scene, etc.
I find it strange when some here now write that L&P has become faster with this update, although the update has not even been released yet. We should not forget that L&P has now divided one gameday into 10 updates. There have also been events with little content in the past only that these were then in combination with other events in a combined update.
With L&P you should always wait until an update is actually available. Usually there is always a reason to complain then.