Wrong pal, with range of over 3000 km it can hit targets as far as most of the Micronesia and Polynesia. And in most of the military artillery doctrine, this kind of missile won’t be fire at Taiwan which is just at a few hundred kilometer from the mainland China. And if it’s equipped with radar and GPS guidance system, I bet even the Japanese anti-balistic forces will pee their pants.
However, for now I doubt the Chinese will arm them en mass. China do have potential to research some newer and better weapon but arm themselve en mass? Well, not now.
You’re assuming the Chinese would be so stupid as to put these things on their coastline. They wouldn’t. These things have the range to hit Taiwan from deep inside China’s interior, beyond normal strike range for Taiwan’s aircraft.