People sending you annoying emails with this method is not really an issue as anyone that knows your email can (and does) find easy ways to annoy you (spam, phishing, chain letters etc.). I do agree however that the user experience is a deal breaker. I'd rather enter a password than open a client and wait for an email to arrive just so I can log in.
looking at all those people, thinking how each is busy with their day, their plans, their hopes - then realizing all of them had already lived their lives and died, including the odd child also in the video... Nothing deep to say - this can be said about every old media showing people - just for some reason, perhaps the portrayed routine, this made me reflect on that fact