For team games is a disadvantage, you need to have different colors for each player so you instantly know where their base is in the minimap, you shouldnt have all under the same color, allies and enemies.
I like the colour suggestion, I had similar thoughts. I would love tournaments to allow more colors too, just Blue vs Red get boring. The “casters” tournaments had different colors for each team and it was very refreshing to see games played under a wider color range.