My concern is about the team XP being increased. It seems like a significant bonus already. Pre-Issue #2 (when the team and mission xp bonuses were increased, I believe), leveling seemed too slow. Since then, leveling seems way too fast. Having played since CoH went live, the level advancement that took a few months in the beginning for me seems to take just days for everyone now.
I think making team advancement faster than solo advancement is a great idea. But I don't want to see that make leveling a trivial matter.