It might. be noted that some WWII wrecks of ships sunk either by U-Boats or other causes have been reduced in height by explosives and cable drags when thought to be a hazard to navigation.
No thought was given to salvage or scavenge of the wrecks prior to that being done.....not withstanding there might have been Remains of those Lost still inside the wrecks.
If we do that kind of thing as a normal practice can we make too big an issue of what the Chinese are doing.
Either way.....some Remains will have surely been disturbed or destroyed.