Wizards says pull God Packs out of prerelease pools

Wizards put out advice for shops on Magic God Packs at WPN events.
In limited events, call a judge or TO over when one gets opened.
Their suggestion: pull the pack, let the player keep the cards, and hand them a fresh booster from the same set for free.
Casual drafts can leave it in, since it gets drafted one card at a time.
At RCs and the Pro Tour, God Packs always get pulled and replaced.

Shops, are you eating a free booster every time someone rips a God Pack, or letting it ride in the pool?

Source: ICv2