this just isnt backed up by any statistics whatsoever and goes off the assumption that the set plays are built around the duelist getting kills, which just isnt the case for a lot of them.
Aspas and Something are the 2 best players by pure numbers I can think of. Both of them are on teams that do not have hard set plays and instead let the duelist pick duels that are favorable for them.
Duelists like Derke, rb, deffo, or even Victor in NRG, didnt have this freedom.
If you go back to old vods you will find so many jett dashes onto site where getting a single kill is already them diffing their opponents. Those will still reduce their stats though.
1 for 1 isnt good enough when youre comparing yourself to Aspas who just get to lurk around the map for a while during the defaults, or a Something who will often have a second duelist entry with him, where the whole site hit is built around getting kills,rather than space.
Its a completely different philosophy of what how the teams use the duelists.