I know for me I kinda missed the colors at first but got used to them. Tehn I got erally annoyed that I couldn't tell the enemy armies apart unless I moused over them. I ended up getting ambushed by an army I was trying to aid because I thought was friendly to me. Realistic perhaps but It wasn't fun. I like the idea of the heralds being important but the same nation seems to have lords with drastically differnt heraldr plus on teh world map the icons are too small to be easily recognizable as tehy are moving around.
I'm glad to see there is a way to turn the colors on. This has been my favorite mod so far.