Smooth review call, however got escalated to my manager

So, the offshore delivery POC and I was working hard to address as much as comments possible, shared by the offshore lead before the scheduled call. But we were able to address only few of those comments and was expecting the other comments to be addressed by the on-site team. The call started and I was running through the updates that was made in the daytime to the on-site team and was detailing the comments shared by the offshore delivery lead and was requesting their support to address those comments. The on-site team was conveying that few of those comments shared by offshore delivery lead was irrelevant and they would try to address few comments. They were also debating about the information that would be going into the final slide pack and finally they were agreeing to the common storyline. The call got over in smooth manner and the hand off was done to the on-site team for making their updates. However, I got escalation mail from my manager to discuss about the call happened and suggestions shared by offshore delivery lead. Read more about the escalation from G R Team sites.