[claudiawerner]

>one-directional shields and turned it into team strategy game with much less room for individual skill

There's plenty of room for individual skill, which goes beyond hitting Q. One-directional shields only reveal that teamplay is necessary, by themselves they don't add the necessity of teamplay. A poorly coordinated team doesn't do a good job. Even if both teams didn't use shield tank heroes, you'd still need just as much coordination.