With the removal of S1Mon official until toronto many question EDG's management and even after the crashout described by Aqua (EDG Manager Stream) Many still think its a bad move because "S1Mon turned EDG into a world class team"
This is just not true. EDG turned out to be so good because of the igl change to nobody (this can be seen on their champs run stream) was agreed upon to the biggest reason why EDG improved so much, yes s1mon utility helped edg but he is not even close to the main reason why edg got so good. If haodong was still igling for edg for example even with s1mon I dont think edg makes it out of the champs group.
S1Mon is a pretty great utility player, but his mental is tested over and over and its shown to be pretty bad, he crumbles under pressure, chokes in big moments, now accused of not putting in the work which doesnt slide in tier 1 (unless you are jdg) and overall a little bit toxic. Doesnt help that his fragging is bottom 5 in the league.
Until S1Mon fixes these issues I think having jieni is much better. Stop with the overall glaze