They don’t need to be that quiet. They can overwhelm their adversaries with volume.
Beat me to it! The other part is China doesn’t care if you know they are there and they actually seem to want to be “loud and proud”. I drive a midsize stodgy sedan yet I continuously pass and out drive high end sports cars all the time. It’s how willing you are to use and maximize your equipment that counts. If I use all of my POS car and you are able or are only willing to use 30% of your Maserati, I win. Also I don’t care if my POS is damaged but you worry about your Maserati all the time. I win again.