Here's the thing, is it gonna make them top 1 right now to get a support player? No, but both ropz and sunny are extremely fresh to the scene and could still grow into superstar players within a short span.
If that does happen then you want someone to lay the groundwork, a styko, kio, NBK player.
While I think the intentions of this move are good, the result could be losing a top 3 spot and going down to bottom of top 10. A support player and IGL is what makes a stable top 5 team, I think this move might work and give them explosive tournaments, but I also think they are far more likely to shit the bed and exit groupstages without someone like styko.
I hope they have another roster-change in lined up if this 5 man lineup doesn't work out.