You gotta be kidding me. He did that to me and my team in a 4v4 on "The Brothers" like 30 minutes ago. He was afk untill I was level 9. He did provide a pretty legit sounding excuse...but if it happens this often I don't care if you have a valid reason to suddenly get pulled away... I'm gonna start avoiding you.
Oddly, we were stomping the enemy without him. They had the hugest noob ever on their team that stayed on the right side. Everyone else had a huge brawl on the left. We just left the noob on the right, teleporting in every now and then to farm him lol.