I'll do you a favour and start a new thread to focus on another direction the discussion around the chaotic world of 4v4.
I will try to divide this into: appealing (why you choose to play 4v4) and imbalance.
Appealing:
Please give me an answer besides i'm playing with 2-3 other friends. I'm specially more interested for those who decide to search random 4v4.
A-Is is due to not having to focus on caping?
B-You like too see/play with a huge amount of units on screen?
C-While maps are bigger, you actually finish playing on a really small portion of the map most of the time, so you can focus mostly on that, is that what you like? (Besides some huge YOLO push on late game)
D-You enjoy being able to have plenty/steady amount of resources (caches) to be able to use any ability or field vehicles?
C - I would disagree with, 4v4 requires a higher level of strategic awareness as you have to be aware of what 7 other people are doing, not just 1 opponent.
You can turn 4v4 into a pair of 2v2 clashes, but that only works if you are winning. Decent teams and decent random players will leave a losing battle and seek to create a 3 on 2 with their other teammates
D- Is certainly true. People complain that Panthers, for example, are extinct in 1v1, that is not the case in 4v4. 4v4 lasts long enough that you will see top tier units you don't get in 1v1
You can add also:
E - There are some units, commanders and strategies you can use in team games that you cannot in small ones. 1v1 and you go Urban Defence it had better be a game winning move, 4v4 one person can do that without necessarily gimping their chances of victory
F- I find 4v4 not necessarily more realistic because that is a loaded word no one agrees on, so I shall say gives greater immersion.
Firstly, because real military commanders are not reliant on flawless micro and planning their build orders. You are on a team where Montgomery doesn't get on with any of the Americans, Patton doesn't get on with anybody, everyone wants their Army to get priority and whilst you are done with that you have to worry about the enemy
Secondly, because command is in large part the act of managing chaos, and so the more chaos the better I like it.