Yes they will 100%. No tier 1 player will accept a spot as bench warmer. Even for most tier 2 players that will not be something they accept lightly. Most 6th players will be players with no ambitions. Unless the team actually decides to use the 6th man often but I doubt it. Also someone falling sick really isn't an problem. That's rare and even in Valorant we have seen teams subbing in players like H1ber, Enzo, SEIDER, Masked, Jammyz that are/were all tier 2 players and for those it was a positive thing just joining in for 1 tournament, but being bench warmer is completely different thing and just negative for their careers.