They also have the best QB in the North, which also makes the WR numbers look better. But yes, GB is light years ahead of the other North teams in terms of pass offense.Here's a fun stat from last year.
For the season, Minnesota had 8 receiving TD's made by wide receivers
Detroit had 15
Chicago had 17
Green Bay had 35
Green bay has the best wideouts in the North. It's not even close.