the first trailer was released before they even had a game engine - anyone with a hint of how development works could've told you right then that the game was atleast 4 years away and gameplay won't be shown until it's polished enough to be used in marketing
So you are saying Death Stranding is still 2 years away? Who thought that was a good idea? Nobody wants to wait that long and the hype will fade out. E3 2018's trailer should've been the official announcement of the game.