While the idea is interesting, I am skeptical that these guys have much expertise in the naval field. I think the concept model shows their lack of expertise: it resembles a fanboi's wet dream.
Four non-stealth-optimized CIWS units on a small stealthy boat like this? And what's up with the tandem arrangement of the front two CIWS units? And check out what I can only assume to be torpedo launchers integrated into the hull sides. Well, that sure has survivability written all over it: if one (semi-exposed) torpedo is hit while still in the launcher, the whole boat is guaranteed to go belly up.
Again, I'm not dismissing it entirely, and if China were to pursue such a vessel, I'm sure these guys would
not be in charge of it.