Earlier quoted context omitted.
Because someone can argue that they don't have access to their email right now (on a trip or something). Or that the associated email has "been hacked".
You can access email from just about anywhere with a internet connection. It's not Netflix you don't need to stream anything any crappy connection will do. I find it hard to believe you're unable to check your email for weeks. Unless you don't want to but then don't complain at that time.
And believe it or not there are still people in this world that may only have an email address with their employer which they don't access regularly outside of work.
And now back to the original article:
We are only getting one of many parts of this story, for all we know the scammer perfectly told a sob story about ordering a gift for their grandson who they haven't seen in several years and will be visiting soon but it didn't arrive in time for their trip and now would like it sent directly to the grandson while they are visiting him so they can still see the joy their gift will bring him.
My point is I don't assume that Amazon isn't trying pretty hard to prevent this fraud, and I don't assume scammers aren't putting in quite a bit of work to commit it.