Supportive, not support - Yekindar is hard entry but he's being set up by his two supportive teammates - Qikert and Buster. Electronic is also being setup by two supportive teammates - boombl4 and perfecto. And team like VP or NAVI can afford to have two supportive players, because they have superstars within the team - VP has Jame and Yekindar, also FL1t is looking promising, NAVI obviously has s1mple and electronic, with b1t developing faster than everyone expected. Meanwhile in EG there are only hit or miss players - Brehze, Cerq and Autimatic can either be really good or really bad, there are no sure things in this roster - and weaker rosters need to have better players to be able to compete with tier1, often times they can't really afford to have 2 supportive players in the team, but they rather have one "dirty work" guy and a hard entry that isn't being setup by his teammates, because he is the one setting the teammates up - look at BiG, for example. They have TiziaN, and k1to is a hard entry that isn't setup by his teammates. He tries to make space for FaveN, TabseN and SyrsoN.
What I mean is that every tier1 team that found success in 2021 had one of their 2 supportive players frag HARD. Gambit's interz and nafany are really good individuals, NAVI's perfecto and boombl4 aren't staying behind as well, G2's Nexa and Jackz were holding their own too, meanwhile every team that didn't really find success had two individually weak supportive players, like FaZe with Karrigan and Rain, NiP with plopski and es3tag, mouz with Dexter and Bymas (Although bymas played really great on the major, gotta give him that), even Liquid with Stewie2k and Grim. That being said, I just believe EG could've signed another supportive player in place of RUSH, this player being JKS, who is stronger individually, so he would make a stronger team. Obviously in the end it's all about teamwork and their chemistry, maybe they really click together and everyone will find their form, but I just don't think going for the weaker player was the move here, if a better player is available.
Stewie2k has star potential, but he will be IGL in this team, so there is no way he will even break 0.97 rating, at least not with RUSH and totally unproven trio of Autimatic, Brehze and Cerq, as they all can either dominate the server or go 5-19 like they did for the past year, or even year and a half. Nobody really knows if this team is gonna work... but they surely would've had much better chances with JKS than with RUSH.