Why maknae Kyujin is not taking off as the center of the group?

Many people voiced out SQU4D should have chosen another member as the center (the one with the most screen time and lines, aside from Sullyoon).

Should SQU4D have chosen another member to be the center of the group?

Haewon should had been the center, Jinni too if she gains bigger confidence

Center isn't the issue. Kyujin is a monster on stage.

she's not very charming nor does she has outstanding visuals tbh, she's a good performer but that doesn't make her a good center