Alot of these new weapons we and the world don't know it existed. Scramjet hypersonic, hypersonic Cruise missile, MIRV hypersonic.
It is going to be another J36/J50 moment where the world is caught off guard..
This is nothing surprising. Army vehicles won't be detected unless they leave their bases (except in Baotou, which is a special case).
Missiles can't be identified unless they leave their canisters
aircraft are difficult to hide, unless they operate in the uninhabited areas of northwest China.
But the Air Force also has many things to hide. For example, before the J-20/J-35 publicly opened its weapon bay, we don't know whether it is carrying the PL-15 or the PL-16.
Who knows, maybe 164 was patrolling Huangyan with loads of hypersonic missiles.