On the minimap there are 2 different icons. 1 for only downed and 1 for defeated. In 2 different colours. 1 colour for allied npcs. And 1 for real players. But on the game main screen it is showing the 2 different colours correctly but always only 1 icon type.
Since there are 2 different icons already in the game they should probably used on the main screen too and not only at the minimap. So this seems bugged. Making it a bit harder to identify only downed people and you really need to look at them to see if they are still alive doing something(in a big battle a bit inconvenient).