How is this different than backlift - https://www.backlift.com is already doing the same thing.
If you look at the demo video at 0:44, you can see a 'Our support email:' section on the page that is generated. The email in that section is 'support (at) backlift.com'.
I think the convenience part is very interesting. I would be more curious to see how they plan on monetizing it.
And the only scenario where this is useful is maybe a website for a client that cares shit about tech and just wants to manage his site on his own, to save his freelancer cents.