No matter how excellent non visual members' skill are, they still won't get viral (with very few exceptions). It's just the norm with rookie kpop gg. Ella was viral from her teaser, top 10 enter talk was talking about her. But she's kind hidden in mv and live stages, yet people still taking about her being shy too.
Gawon is okay, she reminds me of seolhyun.
Yea sadly it is like that… That’s why I think they should make Gawon the center? But they might be reluctant cuz she’s towering the other girls.
Sooin will be perfect for the center position 
