eny kicks in fast in there considering the numbers...some people want to change sides so they aren't affected by it.
I hazard to guess..... when one side has a huge advantage, as is often the case in there these days, they tend to attack the lowest number side. For instance 14 bish, 5 knights, 2 rooks...... bish attack the rooks. I only use this as a reference, it could be any side with huge numbers.
If your on knights you can switch to assist the rooks. Then when they realize knights are now low numbers..... you can switch back.
Used correctly it is a plus to the game. The unfortunate problem is that some folks tend to undermine such settings by switching to find CVs and such.
So one fix may may cause other things to be broken thereby making it worse than before.
As I was typing this I thought of.... what if the high number side had eny affected by the numbers of whatever side they fought against. That may help. I can see where it could be undermined when 3 sides are in close proximity. These are the type things that make Hitech