This must be a compilation of old trailer cutouts, because the 90 degree twisted firing particle bug is still shown at 01:23, 01:26 and 01:39 in this "new" trailer.
Either that or the developers still gave zero shits to actually fix it.
With Kalypso being the publisher I fear this will also require the installation of their Kalypso Launcher which adds absolutely no value or advantage to the game what so ever and that it'll require a online activation and has Facebook and Twitter integration.
This was also one of the reasons why I didn't buy Tropico 4, even though I was looking forward to it - Publishers, stop that nonsense with 3rd party launchers, Online DRM and DLC madness and I'd be more inclined to buy your games. (if they don't suck)