maybe because of how the group was created there are much more solo fans in the fandom. guess they have to be more teamplayer.
there are other groups with far worse treatment and line distribution. loona for example. still their fandom manage to direct their anger at the company not the group or other members.
Definitely because they are from a survival show.
I am sure loona fans are also complaining about line distribution some time but fandoms don't dragged that idol and invalidate those fans feelings.
In kep1er, when fans complain about line distribution, the fandom comes and called that member untalented, names and say some disgusting things. Kep1er fandom consists mostly of solo fandoms. Even if they say they are ot9, they are most probably not.