Pretty much everything is in the title. Bodies disappear everywhere throughout the game. First off all, the amount of necros is EXACTLY the same as in the Co-op making the combat in Solo Campaign annoying. Because of the amount of necro's you can kill 20 and at the end see 2-3 bodies lying around.
And about the kinesis. In DS3 I cannot grab objects and bodies as before, hiding them from Infectors, for example. In previous games you could take a lantern and see everything giving dynamic shadows. DS3 looks completely static comparing to previous games.