In my humble opinion, visually fora rep, the hi beat is the only thing that matters to replicate aesthetics. Sure it would be nice to have the new direct impulse escapement (very unlikely) but it doesn't really impact anything about the replica aesthetically.
And while I like to think the Chinese are pretty good at manufacturing and now have a long heritage cycle of watch manufacturing, the DRIE technology applied for MEMS that is used to create the escapement in the new Land Dweller is not something that can be done with traditional manufacturing/watch making techniques, it is a real, industrial, high level process that, no offense to the rep makers, cannot be done shoddily.
DRIE/MEMS, all this tech, is used in semi conductor engineering, requires stable clean rooms, skilled technicians that are expertly trained, lots of experience.
If they can replicate all of this for the fraction of the price, then I applaud the chinese and wholly welcome the next era of the dominant Chinese masters.