I'm not saying it's 100% true!

I honestly have no idea if it's possible. However, somebody else in the thread linked a video and it appears to not work so looks like you are indeed correct!
As far as 750,000 lb planes go...
https://www.google.com/search?q=are...rome..69i57.6583j0j9&sourceid=chrome&ie=UTF-8
Their is a quick google search and the first result. Most modern airplanes today are designed to run on a single engine. Obviously some planes/small jets only have one engine, in which case you are most likely going to die

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edit: should also mention that I have ZERO piloting experience. I think I saw a post on Reddit/online a few months ago and thought it was very interesting to see that most planes are engineered in a way that 1 engine is all you really need. Although I would think that it would be a very uncomfortable landing, but it's better than dying I guess...