Seems odd to me that they would encourage allowing 3rd party sites to read all your email, but I guess this is where we're at right now
Yeah, that's the only reason I got a question 'wrong'. Sorry, but no third party app is getting access to my email for obvious security reasons. Doesn't matter how 'legit' the company is or what not.
They also have an alternative for the privacy-minded where you just forward any confirmation emails you want them to know about and the same stuff happens, but for the email address I was using for this, there wasn't anything I was worried about them accessing, and this was easier.