Hmmm...
Reminds me of when Daenerys Targaryen stepped out of the fire holding her three dragons...
Big trouble coming?
I doubt that this engine, real or not, is being developed for commercial travel, or even cargo.
As one poster said, that speed is just a tad short of what’s necessary for Low Earth Orbit.
Put a couple of these on a spacecraft and you can take off and land on Earth after visiting a space station. They have one.......................