If you're going to fund that guy you might as well fund my liquid nitrogen custom loop cooled D3. Here are the stats.
https://i.imgur.com/C6zngqu.png
Not only will you make easy profit while still using the x11 algo but you will help the Earth by cooling it down and stopping the global warming!
Jokes a side, it took me a minute to adjust the values of the page I see (right click - inspect element).
Anything you see in that video can be faked either by that method or probably hundred others.
Of course the guy forgot that the worker name on nicehash is an internal wallet address that anyone can lookup and as you would figure 3PKimGa5VDKazCjo1F5SWvDE9kbsQ28jMQ doesnt exist on nicehash.
Additionally, its not a real bitcoin address that can be found on the blockchain explorers.
So through this proof we can actually say that they did prove something... that they are a scam.
Lol.