Is the AI on your team just worse than enemy AI?

4v4s with 7 AIs on arabia. At least up till early castle the AI still plays standard, i.e., as if it's 2 individual 2v2s. In at least the past 10 games my team's other side always loses. Every single time. I play pocket and I can destroy the enemy flank on my side by early castle. Up to this point the enemy pocket on my side is entirely focused on my side. Once the enemy flank is dead their other pocket actually sends some units over to my side, so my team's other side is fighting against <2 players, and my other pocket doesn't come to help so they have the full 2 players, yet somehow by early imp my other flank is always almost dead with second to last score. It's not because of sling either, I checked last game and the enemy team slung 800 res total. Is the AI somehow weaker when it's on your team? I'm not complaining it's an interesting challenge, just want to know if there's some weird behavior here.