With the new patch they started to try a way to manage dead bodies (blood stains are another problem): the cadavers of the mobs killed in the battle at the gates of the Druid's lair disappeared.
(On a side note: a world full of dragons, vampires, demons, immortal beings, gods, but people decides that being able to teleport to a safe camp is not acceptable because somehow irrationale, there are magics able to create deflective shields, to create explosions, fire, that allow to speak to animals, and said animals have brains able to formulate phrases like that of the more evoluted humanoid races, still the existence of a booyah able to teleport someone into a safe area is a no no because supposedly incoherent or irrationale).
To your side note, there’s no real issue with the ability to do so – it just needs to be explained/handled better. D&D is built on rules and mechanics. If those are ignored, then anything is possible – meaning there is no real tension or stakes. Imagine playing a game of D&D where the DM has put a huge amount of effort into developing a challenging dungeon crawl but the players (without any access to teleport magic which is much higher level) just say they’re going to ‘port back to camp’ every time things get tough. Ridiculous.
