Depending on how "broadness" is defined, narrowness can be a good thing. Every task and vocation needs its definitions and delimitations. We need specialized information and practices that provide safety and direction.
- I'd rather have a waiter in a restaurant with a food certificate than one in calculus or home decor.
- I don't think I'd like an airline pilot who was so broadminded that she treats a 747 with the same flexibility as a jet fighter.
- I really don't want my doctor to be so broadminded that he experiments on me with unproven medical techniques.
Jesus, beloved by many and hated by others, walked a fine line of inclusion and separation. He warned his followers, "You can enter God's Kingdom only through the narrow gate. The highway to hell is broad, and its gate is wide for the many who choose that way. But the gateway to life is very narrow and the road is difficult, and only a few ever find it.'" (Matthew 7:13-14)
It's vital to evaluate if the company we keep follows that narrow way or is swarming happily toward destruction.