Every team is reliant on their best players. Whether they are our four best players or not is arguable. Perhaps Partey, or even Raya would be in there. Either way, it is a pretty stupid argument to make in the first place.
Well the unstated context is that these are players that we could not win the league if we were to lose them for an extended period i.e. for the remainder of the season.
I would agree on Ode and Saliba, the others i?m not convinced.