Completely aside from the arguments on statistics, I'd like to point out something,
@Tusc2010. Box 40 is not the only good reward. Yes, there are a lot of underpowered rewards in this event (as I have stated before). However there are quite a few decent rewards.
Boxes 10, 20, 30, 40 (the 2 week Pandora bonuses to resource production, recruitment, favour production and BP respectively) are all very useful. BP is definitely good, but that doesn't mean the others aren't as well.
Most of the Rituals are nice. Passionate Population and Nereids are always useful (and will be even more powerful when combined with Pandora's Guidance). Other Rituals look useful if used correctly (such as Chain Lightning), and this is possibly the only event which gets you access to the rarer rituals, so far as I know. Even with no gold usage and less browser-based activity than I would have liked, I've managed to obtain Passionate Population, Sudden Aid, Wedding Amongst Aristocrats and Divine Aura, which will all be useful if used tactically.
Land Expansions are brilliant in my opinion, due to the permanent nature of the bonus. Even a small one probably makes more difference than you think, if you look at the long term.
Rare/Epic Improved Favour Production tokens can be put to good tactical use (or just fun use, if you unleash them late game and get to use more spells than a Harry Potter novel).
Yes, the unit tokens are extremely small, and a number of the early rewards are copies or weaker versions of those available from island quests or the mystical goblet. However there are quite a few rewards in this event that can yield strong bonuses if used thoughtfully.