Personally, I belong to the paranoid faction. I mean you can't play it safe enough when it comes to Nutaku. Especially when you look at the last crossover with Idol Wars, where they coudn't manage to deliver the gifts at first and after that people got gifts that they hadn't acquiered. Sure that was a positive example at the end but still, it's better to be safe than sry for the case that something goes awry.
On another note, I felt confident about clearing "5. Never giving up" from the x-overd event, so I tried "6. Never telling a lie", only to notice that the eggs are now of the dark element instead of the light ><. Kinda messes my team up, so i probably won't be able to farm it. But I'm already at around 1k eggs, so it shoudn't be a probem anyways =)