The technology within him seems to allow for the use of chakra at a way higher proficiency than normal. That's on top of the shape shifting and energy blasts. If the technology can be easily replicated it could mean the end of shinobi as we know it.
Mayb3 u dont count as shinobi then. Like a soldier still but a different type. Ninjas become obsolete in The face of new tech like the last samurai.I'm not talking about a plot end. I mean in a practical sense. A mediocre shinobi would become an elite with the tech that Kawaki has.