None of those players are the reason why their teams win. Nats, Nivera, PTC and Mako are way more useful for the team. Forsaken doesn't play Jett much recently. A similar thing can apply to 100T, most of their roster is very solid- including Nitro.
Thats not the point tho, nitr0 can literally play every role and every agent the team needs him to play, put seven in there for more fragpower than b0i. Seven will most likely br ablr to play multiple agents anyways