correct and in the above metrics the traveller is standing still. no G's no inertail mass build up, no violation of universal laws occurs. while in the real space no mass is observed moving FTL. just a swelling of space -local and temporary.
It all sounds a bit like science fiction to me... Lot's of great sounding techno phrases, but very little in the way of applicable hard fact science... There's the small matter of dragging the devices that do the warping of spacetime along for the ride, and the matter of building the devices with black hole like powers in the first place...
A letter to Luis Villazon's help page in PC Format springs to mind, where someone sent in a stupid question about where to find a CD rom drive for the PC that didn't take time to spin up...
The reply was that he should buy the latest generation of CD drives that use warp field technology to introduce massive curvature to the space time metric around them... The only problem with them is that the CD's you put inthem must be infinitely stiff, therefore they must be infinitely dense, which means if you don't handle them properly, your PC will implode into a black hole...