And many already play weakened sides in the 3rd round anyway. Even Prem teams who are 'safe' from relegationThe 'too many games' argument is spurious.
It's not as if every game ends in a replay even with replays as an option.
Most top flight clubs won't have any.
Some may have one along the way.
Rarely there might be two.
Very rarely there might be three.
And that's supposed to be the threat to player's health as mentioned by Arteta?
It would be interesting to see the real numbers in terms of actual extra games played per club.